Agree with you Avante & Egress are very sur-relistic...
But
Optima is rather traditional.
HotShot was like nothing before it but ,but with it's red & white color scheme it resamble
a buggy version of a Ferrari 312B of the 60's... can't really say it's futuristic.
Avante & Egress pave the way to the style of then very popular 4wd of the 90's (those non-RC type that runs on 2AA batteries).