Here ya go Road Trip Bob...
The Corvette is not a bad package..but how about something slightly smaller..more aero friendly..lighter...with better suspension...
with effectively the same engine..generally VERY well maintained (extreme performance car, modified to suit..and very reliable..)
http://www.norotors.com/index.php?PH...&topic=24953.0
94 Chaste White LS3 FD3S
A couple of examples there...but MANY more out there in the wild if you want something a bit different, that driven sensibly will return outstanding fuel economy..but..if you wish to stand out from the crowd, and have the ability to attend a race track and WIN..it may be worthwhile..
Never thought I would post one of my favourite toy cars on an eco forum hahahaha (I have owned 5 of the above...ranging from stock to 1300rwhp..but they had the rotary engine still in them..FAR from economical!)
I like the fact your looking for efficiency, but ALSO wanting some "drivability and style"...
Widen your scope further, and you could have a look at things like a RCR SL-C with a long geared engine in it, or potentially a more mundane but still beautiful Jaguar XJ with a diesel turbo..(heres a entertaining review
https://www.topgear.com/videos/top-g...s-12-episode-4 ) - that Jag..driven HARD returned around 50+mpg ...