problem categorising sprtscars

i am having problems categorizing sportscars. I'm going to name them so could you tell me which cars belong in which category. the names: Audi R8 Alfa Romeo 8c Corvette C6 Corvette Z06 Mercedes CL Class Mercedes SL Class BMW 6 Series BMW M6 Maserati Granturismo Dodge Viper SRT10 Jaguar XK

• Audi VS Porsche VS Aston
• What to choose?
• Create your own cool wall.
• BMW E30 M3 Vs nissan skyline R32 GT-R
• Mitsubishi FTO VersionR Mivec vs Honda Integra Typ
• Volkswagen Group versus Ford Group