That will be the old school US, 16 Valve, V8 engdidn'tn't buy oneor you.
I remember looking at a VXR8. It had 5 miles on the clock when I took it out for a test drive. After about 20 miles the average fuel consumption had risen from 5 to 9 miles per gallon. I know it was a new car and the engine still had to bed in but 9 mpg. Needless to say I didn't buy it.......................