11th Generation Toyota Corolla Pakistan

[zuhaibafzal]

@autophile Bro, here you go. If you think car is showing wrong speed so where the needle should be as HUD showing speed of 117kph while car speedometer showing 120kph.

Need your kind words.

[nido747]

@autophile Bro, here you go. If you think car is showing wrong speed so where the needle should be as HUD showing speed of 117kph while car speedometer showing 120kph.

Need your kind words.

Hey guys relax.. Neither HUD/GPS is wrong nor Speedo meter is wrong. Does anybody know about Parallax Error. This parallax error is due to the position of a person that see their car odo meter needles. It is a very common error in needle meter readings. I have learnt it during my some course training (not related to cars ) that's why i know about that. we people see our car meters at a specific position, and we never concern about +/-3 Km/hr error till we see some digital meter reading. if we adjust our position or let say our eyes in a straight line with analogue needle meter then this error will gone but we might ended up by hitting another car during this process.

[bilal49er]

size of tyre is also a factor to consider.
GPS speed will have no effect regardless of tyre size, whereas analog speedo is solely dependent on tire diameter and number of revolutions per unit distnce

[zuhaibafzal]

Hey guys relax.. Neither HUD/GPS is wrong nor Speedo meter is wrong. Does anybody know about Parallax Error. This parallax error is due to the position of a person that see their car odo meter needles. It is a very common error in needle meter readings. I have learnt it during my some course training (not related to cars ) that's why i know about that. we people see our car meters at a specific position, and we never concern about +/-3 Km/hr error till we see some digital meter reading. if we adjust our position or let say our eyes in a straight line with analogue needle meter then this error will gone but we might ended up by hitting another car during this process.

This is what i wanted to say. Both are correct.

[nido747]

size of tyre is also a factor to consider.
GPS speed will have no effect regardless of tyre size, whereas analog speedo is solely dependent on tire diameter and number of revolutions per unit distnce

Yes size of tyre also add error in speed meter reading but if stock size is used then no error.

[fawadakbarkhan]

I took a trip in Gli manual from isb to chakwal .. cabin is as noisy as my City .. at 120-130kph ..

Why people were bragging about sound insulation in new corolla ?!

No idea about GLi. But altis 1.8L trims have cabins far quieter than the civic.

[umair2203]

Has any body taken up sound insulation project in Gli / Xli or Altis 1.6 .. I think this will be the most use ful upgrade if any one can do it ... but mostly prople are tilted towards lexus type after market tail lamps or they are after plastering chrome all over thier cars ...

Guys take up this project as well

[arhum1994]

Parallax error occurs when you arent looking at a measurement device at a direct 90degree angle. In the case of speedometers it is very rare for parallax error to occur because of the fact that you are mostly looking at the speedometer at about 90degree angle unless your seating position is like a boy racer(laid back). Engineers and designers obviously do think about parallax error and they design the speedometers such that the error is minimum.
As for GPS, well Gps is an measurement device and it is prone to error. The accuracy of Gps depends on the no of satellites the Gps is connected to and most important the Quality of the gps receiver and i doubt toyota has used to a good quality receiver. The speedometer has already been through testing and quality control while i doubt the navigation system has been rigorously tested for accuracy of speed reading. So the speedometer has a lesser chance of error than the navigation system giving error in the speed reading.

[mubeenshahid]

No idea about GLi. But altis 1.8L trims have cabins far quieter than the civic.

Yes i found altis to be more quiet than civic

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[nido747]

Parallax error occurs when you arent looking at a measurement device at a direct 90degree angle. In the case of speedometers it is very rare for parallax error to occur because of the fact that you are mostly looking at the speedometer at about 90degree angle unless your seating position is like a boy racer(laid back). Engineers and designers obviously do think about parallax error and they design the speedometers such that the error is minimum.
As for GPS, well Gps is an measurement device and it is prone to error. The accuracy of Gps depends on the no of satellites the Gps is connected to and most important the Quality of the gps receiver and i doubt toyota has used to a good quality receiver. The speedometer has already been through testing and quality control while i doubt the navigation system has been rigorously tested for accuracy of speed reading. So the speedometer has a lesser chance of error than the navigation system giving error in the speed reading.

very true and so is the case with HUD too.. HUD might also be faulty like GPS but as Engineer has tested ODO very accurately and considered all the possible error that it could cause so ODO is very accurate and impossibility of having parallax error caused by the position of the driver.

[rabeel_fariq]

Edited

[autophile]

Parallax error occurs when you arent looking at a measurement device at a direct 90degree angle. In the case of speedometers it is very rare for parallax error to occur because of the fact that you are mostly looking at the speedometer at about 90degree angle unless your seating position is like a boy racer(laid back). Engineers and designers obviously do think about parallax error and they design the speedometers such that the error is minimum.
As for GPS, well Gps is an measurement device and it is prone to error. The accuracy of Gps depends on the no of satellites the Gps is connected to and most important the Quality of the gps receiver and i doubt toyota has used to a good quality receiver. The speedometer has already been through testing and quality control while i doubt the navigation system has been rigorously tested for accuracy of speed reading. So the speedometer has a lesser chance of error than the navigation system giving error in the speed reading.

very true and so is the case with HUD too.. HUD might also be faulty like GPS but as Engineer has tested ODO very accurately and considered all the possible error that it could cause so ODO is very accurate and impossibility of having parallax error caused by the position of the driver.

Did anyone read the link I posted. Its not the only link but pages after pages which I have read, all say that GPS is more accurate.

How accurate is your car speedometer? #AskTCE

What's more accurate: the car's speedo or the GPS? - The Globe and Mail

GPS speed vs Car Speedometer - GPS - Gadgets

How accurate is a GPS-based speedometer? | GPS Systems

Which Is More Accurate: Speedometer or GPS Device? - WSJ

How accurate is your speedo?

[gulraiz_95]

Guys kindly guide me on buying a new car. We have an Altis sr 2011. Planning of selling it for a new car. We can buy an Altis grande full option or a gli.

Kindly guide me about both variants reasle value. And also we had a gli 2008 before which we sold due to underpowered engine. So is the new model gli better or even worse. Its Top speed. Resale. Economy. And your expert opinions

[hbokhari99]

go for altis grande cvti.

[rizwan400]

SUrpriseeee ......Working Honda Civic IGO maps in Altis Grande

[shahzadmansoor]

I booked a Grande Cvti today delivery should be before eid i hope so. I wanted to change the rims to 16 inch ones . At the dealership they quoted me 105000 for the ones they have in thailand with michelin tyres. They would adjust the tyres and original rims for 42000 rs. I didnt opt for that now i want some decent branded rims from lahore which is the place to get them and what profile should i go for in tyres.

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Anyone?

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[itsgumbys]

Guys, in Grande there is a option of manual gear shifts (M +,-) on stick. how is it different from paddle shifters ?

[MoinIqbal]

Guys, in Grande there is a option of manual gear shifts (M +,-) on stick. how is it different from paddle shifters ?

Same shift, just a different way to do it. Once in M mode, push forward for up shift and backwards for downshift.

[itsgumbys]

So does this practically means in 1.8 Altis CVTI (Non grande) there is an option for paddle shifting as well (just a different way)

[cycloid14]

Grande's(Altis) resale isn't that good. Consider the fact that there is now only one month wait time for Grande while on the other hand for Gli its 5 months. Specs wise Grande is better but resale wise it is no match against Gli. I had a option between Grande and Gli and I went for Gli. I booked one Gli which would be delivered in September and I'll book another Gli within 15 days which would be delivered in January 16.