@Aneesh: I am not a vento owner but I have good experience with VW cars, since 2 of my best friends own a Jetta 2.0 TDI AT & VW Polo 1.2 TDI & been to VW service centre whenever they needed my help. I have nothing to complain about Jetta except for the service part. But VW polo's steering is very light...over-responsive is the apt word.You rightly said about suspension & the steering. During spirited driving it becomes very problematic to judge the steering responsiveness. The reason behind it is Electronic steering Assist is continuous, so it becomes even lighter when you are at high speeds. And never trust a sales executive, most of them don't know what they are talking about & all they care about is selling the car...There is no way
that steering is going to be better before PDI or after PDI. There is only one way to improve the steering responsiveness & it's the hard way...you need to connect to the car's ECU using your VAG-COM cable & do some settings..( I don't know have complete knowledge of what those settings are, there were many settings to fiddle with but as far as I know it weighs up your steering by reducing the power assistance. And don't know how far it is reliable so stayed away from it...but some people got it done by going for an after market suspension & tyre upgrade & there by tuning their ECU settings.
I don't what these people at dealerships can do, that Professionals at VW factory couldn't do