Interesting.. I don't know why the Z would have the starvation issues.. Tracked my G sedan the whole day and never had that issue even at 70mph 100 degree sweepers and with the suspension i had, i had to pull over 0.95 Gs the whole time during those turns. Towards the end i had close to 1/4 tank and still didn't have issues.
I guess that is why it is bargain compared to other cars with similar performances, just minor issues like this would get kind of annoying..
Looks really fun though.
