Trident Iceni

For too long, the quest for a fuel-efficient sports car has been largely dominated by one approach — plug-in or hybrid electric engines — and in that quest, not nearly enough attention has been paid to the obvious benefits of diesel power. The Trident Iceni represents a counter to that approach, sporting a 6.6-liter V8 engine capable of producing 395 horsepower and an incredible 700 pound-feet of torque. All that power and torque means it can hit 60mph in just 3.7 seconds, and a top speed of over 190mph, all while claiming a range of around 2,000 miles on a single fill-up. And with classic British sporting-inspired style (available in a convertible, fastback, and shooting brake body) it's really hard to go wrong with this one.