Question about using mod cars

Hi everyone,

I'd really like to download some cars but want to ask a couple of questions first.

Could use a mod car to replace one of the default cars, but still use the default cars handling ? I've tried a mod version of some cars on a friends PC, but they all handled like they were on ice. I really like the default handling of the San Andreas car, or any of the other Rockstar created car handling systems. I'd just like to be able to download the real life skins is all.

Has anyone done a collection of cars which fit the time period of San Andreas ? I'd like to keep it as near realistic as possible.

Which cars do you chaps recommend ?