Sounds like a lot of unsubstantiated speculation to me. And poor at that. I think it would hit 62mph in under 4s if it had that kind of power and weighed 250lbs less. Also US price would probably be $90-100k, not $143k, if they sold it here.
A gen-u-ine BMW eff-eight-zero with them tandem clutches in the transmission and that dad gum sun roof on the top-a da cawr.