both the cars are the same size right? the gs just has a bigger engine i'm thinking. so the companies that make bodykits etc. are made to fit the gs3 and gs4 the same? can 20 inch rims fit the gs3? thanks

 

Yes to all questions.

Chu...

 

i believe everything other then engine is the same

 

correct me if I'm wrong, someone. But I've heard the differences were in the engine, nav unit, heated seats, and about 8grand.

either that, or I got some bad info from my sales guy. heated seats in hawaii? he he

 

Nav is the same on GS models. It was upgraded for both models with the 2001 year (from hard drive to DVD based with a bigger screen).

 

Is it possiable to put the 2001 model navi in a 98 or 99??

 

Also the gearing in the rear end is different between the 300 and 400.

and my car came with the a$$ warmers, it was in a package deal, I don't use it but some of the girls I'm with do...

Aloha

 

hov,
you are right about everything.
and 20 inch rims will fit the car, just make
sure you get the low profile tires.

 

you don't have anything to worry about all that stuff you mention will fit on the gs300..................