5. Subaru SVX

The Subaru SVX, produced from 1991 to 1996, was a luxury sports coupe that stood out with its distinctive aircraft-inspired window design, featuring a unique split window configuration. (roadandtrack.com) Powered by a 3.3-liter flat-six engine, it offered a smooth and powerful driving experience. Despite its innovative design and performance, the SVX’s unconventional styling and high price point limited its appeal, leading to its rarity on the roads today. (roadandtrack.com)