Help me pick which vehicle I should get next.

Well deciding to upgrade my babys, they have had a long run.

My current vehicles:
-2016Chevrolet Camaro ZL1
- 2015Yamaha YZF R1

Vehicles I'm deciding over.
-2017 Chevrolet Corvette
- 2016 Audi S4
-2017 Alfa Romeo 4C
- any year BMW i8
feel free to suggest any more.