Why is the Z slower than comparable cars?

Originally Posted by ZMan8

Basically my take is when the Z came out in 2009 it was faster than most if not all cars in that price range. Really the Z competed against the Porsche Boxster and Cayman. (poor man's Porsche)

Since then, the genesis, mustang, and camaro have been upgraded at least once if not twice. The Z meanwhile was only upgraded aesthetically. I assume the Z35 will return to the top or near the top, unless they go for a lighter weight car with less power.