KBB.com 10 Coolest New Cars Under $20,000. Only 23,036 Miles! Scores 36 Highway MPG and 31 City MPG! Honda Certified Pre-Owned. Dealer Certified Pre-Owned. This Honda Fit boasts a Regular Unleaded I-4 1.5 L/91 engine powering this Variable transmission. Wheels: 16"... via HomeNet, Inc.