They do vary from my experience. We have 3 VF SV6's. 2 auto sedans and a sportwagon. Sedans are 2014 & 2015. The sportwagon is 2017. The sedans are both ex rentals from AVIS. The wagon was new. The 2015 sedan goes like the clappers compared to the other and goes a little harder than the wagon too. Turn off traction and plant it and it will rip a skid from a stop start. Neither of the other 2 do. It's also nicer to drive than the other sedan. I doubt it's neen tuned. Just a different factory tune i guess?