Last I checked their brochures was 7-8yrs ago. At that time it didn't look efficient. bmw 3 series starting price car was weighing 1.6ton and did 8-10km/l. which is not good.
I just checked latest info from their website, they have improved ALOT.
check this out:
BMW 730d:
[TABLE="width: 338"]
<tbody>[TR="class: mc_table_headline"]
[TD="colspan: 4"]Fuel consumption*[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]6.8[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Extra-urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]4.9[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Combined in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.6[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]CO2 emissions in g/km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]148[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Tank capacity, approx. in l
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]80[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="width: 338"]
<tbody>[TR]
[TD="width: 11"][/TD]
[TD="width: 192"][/TD]
[TD="width: 10"][/TD]
[TD="width: 120"][/TD]
[TD="width: 5"][/TD]
[/TR]
[TR="class: mc_table_headline"]
[TD][/TD]
[TD="colspan: 4"]Performance[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Top speed in km/h
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]250[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 0?100 km/h in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]6.1[/TD]
[/TR]
</tbody>[/TABLE]
BMW 740d:
[TABLE="width: 338"]
<tbody>[TR="class: mc_table_headline"]
[TD="colspan: 4"]Fuel consumption*[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]6.9[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Extra-urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]4.9[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Combined in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.7[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]CO2 emissions in g/km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]149[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Tank capacity, approx. in l
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]80[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="width: 338"]
<tbody>[TR]
[TD="width: 11"][/TD]
[TD="width: 192"][/TD]
[TD="width: 10"][/TD]
[TD="width: 120"][/TD]
[TD="width: 5"][/TD]
[/TR]
[TR="class: mc_table_headline"]
[TD][/TD]
[TD="colspan: 4"]Performance[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Top speed in km/h
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]250[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 0?100 km/h in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.5[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
BMW 750d:
[TABLE="width: 338"]
<tbody>[TR="class: mc_table_headline"]
[TD="colspan: 4"]Fuel consumption*[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]7.3[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Extra-urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.9[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Combined in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]6.4[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]CO2 emissions in g/km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]169[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Tank capacity, approx. in l
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]80[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="width: 338"]
<tbody>[TR]
[TD="width: 11"][/TD]
[TD="width: 192"][/TD]
[TD="width: 10"][/TD]
[TD="width: 120"][/TD]
[TD="width: 5"][/TD]
[/TR]
[TR="class: mc_table_headline"]
[TD][/TD]
[TD="colspan: 4"]Performance[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Top speed in km/h
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]250[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 0?100 km/h in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]4.9[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
BMW 520d:
[TABLE="width: 338"]
<tbody>[TR="class: mc_table_headline"]
[TD="colspan: 4"]Fuel consumption*[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.9-5.7
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Extra-urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]4.4-4.2 [4.3-4.1][/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Combined in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]4.9-4.8 [4.9-4.7][/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]CO2 emissions in g/km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]130-125 [129-123][/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Tank capacity, approx. in l
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]70[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="width: 338"]
<tbody>[TR]
[TD="width: 11"][/TD]
[TD="width: 192"][/TD]
[TD="width: 10"][/TD]
[TD="width: 120"][/TD]
[TD="width: 5"][/TD]
[/TR]
[TR="class: mc_table_headline"]
[TD][/TD]
[TD="colspan: 4"]Performance[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Top speed in km/h
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]227 [225]
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 0?100 km/h in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]8.1
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 80?120 km/h
in 4th/5th gear in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]6.9 / -[/TD]
[/TR]
</tbody>[/TABLE]
BMW 530d:
[TABLE="width: 338"]
<tbody>[TR="class: mc_table_headline"]
[TD="colspan: 4"]Fuel consumption*[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]7.4-7.2 [6.6-6.4][/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Extra-urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.1-4.7 [4.8-4.6][/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Combined in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.9-5.7 [5.5-5.3][/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]CO2 emissions in g/km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]155-149 [145-139]
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Tank capacity, approx. in l
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]70[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="width: 338"]
<tbody>[TR]
[TD="width: 11"][/TD]
[TD="width: 192"][/TD]
[TD="width: 10"][/TD]
[TD="width: 120"][/TD]
[TD="width: 5"][/TD]
[/TR]
[TR="class: mc_table_headline"]
[TD][/TD]
[TD="colspan: 4"]Performance[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Top speed in km/h
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]250
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 0?100 km/h in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]6.1 [6.0][/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 80?120 km/h
in 4th/5th gear in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]4.9 / -[/TD]
[/TR]
</tbody>[/TABLE]
BMW 550d:
[TABLE="width: 338"]
<tbody>[TR="class: mc_table_headline"]
[TD="colspan: 4"]Fuel consumption*[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]7.1[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Extra-urban in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]5.8
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Combined in l/100 km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]6.3
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]CO2 emissions in g/km
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]165[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Tank capacity, approx. in l
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]70[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="width: 338"]
<tbody>[TR]
[TD="width: 11"][/TD]
[TD="width: 192"][/TD]
[TD="width: 10"][/TD]
[TD="width: 120"][/TD]
[TD="width: 5"][/TD]
[/TR]
[TR="class: mc_table_headline"]
[TD][/TD]
[TD="colspan: 4"]Performance[/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Top speed in km/h
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]250
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 0?100 km/h in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]4.7
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
[TR="class: mc_table_entry"]
[TD="align: center"][/TD]
[TD="class: leftalign"]Acceleration 80?120 km/h
in 4th/5th gear in s
[/TD]
[TD="align: center"][/TD]
[TD="align: center"]-
[/TD]
[TD="align: center"][/TD]
[/TR]
[TR="class: mc_table_seperator"]
[TD="colspan: 5"][/TD]
[/TR]
</tbody>[/TABLE]