It's not going to work. Not without completely re-engineering the car. The rear track on a Corvette is mmuch wider than the Contour, it will leave your wheels sticking out past the fenders. It's not like you can just make the rear end any narrower either, it's a bit more complicated than that.
The Contour just wasn't designed with RXD in mind at any point. The fact that the Focus pulled it off was either a fluke, or Ford did at one time contemplate releasing the Cosworth version. The car almost seems built with an allowance for a driveshaft and has plenty of room for a beefy IRS.
I have to agree, in comparisson, a turbo setup, some coilovers, and a good set of tires will get you everything you are looking for, and be alot safer. I woldn't even think of doing a swap into the Focus if the engineering side hadn't already been done for me.
