Dodge Challenger SRT Hellcat
No. 5
Dodge Challenger Hellcat – 10.85 hp per $1,000
Despite the majority of coupes costing slightly more than their sedan brethren, the Challenger is cheaper than the four-door Charger. The Hellcat two-door isn’t the only smart buy for horsepower: both SRT 6.4 V8 (10.39) and V6 (10.27) models of the Challenger rate highly, as well.