The MX-5 needs no introduction. As a direct descendant of the roadsters of the 1960s, this convertible is proof that power isn't the solution to every problem. Weighing just 1058 kilograms and with a mere 155 horsepower, the MX-5 is more fun to drive than many performance cars out there with twice the power—thanks in large part to its fantastic manual gearbox and wonderful chassis. And it consumes just 6.9 L/100 km on the highway.