Mine is a diesel with a serious V6 engine .. The V12 performance is superior to the V8 by far. It pulls the G-Wagon to 60 under 5 secs... The Diesel is not shabby .. The issue is the car high center of gravity and its truly bad aerodynamics. Quick but ultimately not at ease with speed over 150 Km/h. As it would be expected with a body shape like that: View attachment 28545 View attachment 28546
The V12 does not, you're mistaken. The powerband is very narrow. And look at modern trucks, they have similar aerodynamics and weight yet way better gas mileage.
I pick up my car tomorrow after in for 3 day service and a $3K bill
Makes me ponder
You'd probably look pretty good in a GT-S...