No sir no plz 
.Im not mentioning pickup or sluggish drive.
Im saying how os it that a vitz can keep up 140 as easily as a car with better power to weight ratio.
There will be a lot of numbers involved here and it will look like im bieng a nerd.
All right Fuck it im going in
Vitz has 1000cc 1kr fe engine making 64 hp.It has a kerb weight of about 1050 kg.Using basic maths the power to weight ratio turns out to be 0.00615 units.Multiply it by 100 for easier calculation it becomes 6.15.
Alto has jerb weight of 670 kg and the R series engine makes about 54 hp.Doing the mats again we get .00805
x100 becones 8.05
All the values and numbers were taken from google and official websites.
Dear brother im sure theres nothing lef to explain at this point onwards.Feel fre to have any queries im free to address them
Jazakallah
PS Im a mechatronics engineer and therefore i get a little jumpy and excited by the thought of physics.I cant stand any anomaly 
