2050 hmm. I can give my recommendations for the year 2015 but wuff! 2050 is far far away. Would there even be cars then?
I know its a waste of words as Mehran will forever remain like this but for fun I'll give it a try.
For 2015
1. 500cc super-economical hybrid engine. (Milage 50kms/ltr.)
2. Space for 5 adults.
3. Hardrive car theater.
4. Broadband internet/cable/digital TV.
5. Voice recognition before start up.
2025
1. Sat Nav auto pilot.