12. Mercury Marauder X-100
The Marauder was a car they imagined as a luxury coupe and had a fresh design with some interesting features. Mercury included concealed headlights and a massive front end. Also, it had a sloping rear end with concave rear glass. The Marauder was a big, heavy car intended for cruising rather than street racing. However, Mercury needed something to fight the Pontiac Grand Prix and Buick Riviera GS. They knew they needed to upgrade the Marauder to higher specs.

So they introduced the Marauder X100. Behind the strange name was a regular 1969 Marauder with a 429 V8 engine with 360 HP. Also, it had bucket seats, a heavy-duty suspension and blackout rear trim, and fender skirts. The performance was respectable, but it was still a big, heavy car, so compared to some barebones smaller and lighter muscle models, it was significantly slower. The Marauder line was relatively popular, but the X100 wasn’t a best-seller. In its two years of production, Mercury made just over 8,000 of them.