You can check the dimensions of any car before you buy it. Right before the money is actually taken from your total, you get a screen that lists most of the car's stats, including engine type, drivetrain, weight, dimensions. For the lightweight K-Car cup, you're looking for a car with a length of 3400 mm or less. That pretty much limits you to the little plastic boxes with less than 70 HP. The Capucino is a good choice. I won the series driving it with very little effort. Look in Used Car Lot 1.
