Get a red Recaro (booster). Baby seat wise...there isn't really much to choose from. You could have one upholstered. DL
I bought a Porsche branded Brittax from a Porsche car dealer. It had a narrow base to fit in the back of my 911 (964). When I sold the car, it was also a nice fit in the Ferrari (both my kids are now forward facing). The print was 911s and bears (insert joke). Graco also makes some seats that look like Sparco race car seats, but they are for older kids (boosters). I know of one guy who is planning to reupholster his regular car seat in Connoly, with piping to match his car's interior.