The Fiat 500
Abarth is a relatively pedestrian hatchback, however British tuners Superchips was determined to give it some more power. Working on the Italian car's computer, they were able to boost the 500's output up to 155hp and 186lb-ft of torque. The 500 Abarth achieves an extra 22hp and 34lb-ft of torque from the car's 1.4-liter turbo T-Jet turbo engine. A nice boon for the tuning job is that the fuel-efficiency numbers remain the same, meaning the 43.4mpg figure doesn't change.