funny, but no, thats not it!
i didnt own one before the other. im talking about now. both cars are almost identical from idle till ~5250rpm and then the '09 bogs down and the '11 surges forwards as though its running nitrous.
what's even stranger is that the two cars sound completely different. the older one sounds like an electric car. the newer one sounds like a turbocharged v8.
-both cars have been this way from new.