Do "Tuner" cars count as production cars?

[COLOR="Red"]^ Title. If they don't, then the Bugaati Veyron remains the fastest "Production" car, at 253 mph.

However, if they do, then I think several cars would beat it, including Hennessey's Viper.

Ideas?[/COLOR]

Um... Nascars?

[COLOR="Red"]Wut...?

Oh..no. I mean things like this.

Not "Race" cars...just tuned-up cars by businesses.[/COLOR]