Two-time Solstice owner here...
There’s a great, twisty, exhilarating run from Salem to the coast I’ve driven many times in almost a dozen different vehicles over the last dozen years...it’s a course I could run blindfolded.
I’d say it’s nearly a tie between the Solstice GXP manual w GMPP upgrade and Pilot SuperSport tires...and the far-more-powerful Dual Motor AWD Tesla 3 with Sport4S tires. Both are 50-50 weight distributed, designed by the same genius, and exceptional vehicles. The Sol gets a bonus for the top-down thrills with mind-numbing passing acceleration.
If you’re shopping for a daily commuter car, a 2.4 will get the job done...and I’m a sucker for green on a Sol or Vette. If you want the most smiles-per-gallon, get the GXP manual and never look back...trust me, you won’t want to see the folks you blasted past up-hill without flinching.l anyway 😉