consumer report from 2008 listed these type of cars as sports cars, roadsters, and sporty cars. Not saying if I agree or not. just posting what I found.

performance/luxury sports cars.

1. porsche 911 carerra s MT
2. Corvette zo6 MT
3. Audi S4 MT
4.Benz SL550
5. JAG XK Vert
6.Lexus SC430
7.Caddy XLR Base
8.Viper SRT10 MT

Roadsters
1. Porsche Boxer 2.7
2. MX-5 Miata GT
3. Benz SLK350
4. Vette BASE
5. 350Z GT
6. S2K
7. BMW Z4 3.0i
8. Saturn Sky Redline
9. Lotus Elise
10. Pontiac Solstice BASE

Sporty cars
1. Mazda3 mazdaspeed GT
2.GTI
3. RX-8
4. Civic SI
5. Lancer evo
6. Mini S
7. Scion TC TRD
8. Mustang GT V8
9. Scion TC Base
10. Eclipse GS 4cyl.