Of your choices I'd say Jag and Ford Mk IV. Both are sweet cars, but the Jag edges it for me because it's paintable, has one with stripes in GT6 (Chrome Line if you're into that kinda thing) and is British, so I am kinda biased. But no, honestly the Ford handles really well, so does the Jaguar out of the box, but do you want to make it unique, or do you like that Mk IV red?