MerlintheMad
10000 Posts Club!
The Optima is actually a little less than one inch longer than the Stinger. The longer wheelbase on the Stinger makes it roomier inside than a G70 or similar cramped four-door. The cross engine arrangement of the Optima allows the cabin to be even more roomy; but it has a box for luggage. The Stinger wins.Sitting next to my '17 Optima Hybrid, they seem about the same length.

