Compact cars are typically a bit larger and pricier than economy cars. Economy cars are usually 2-door cars with seating for up to 4 occupants and storage space for a medium suitcase and a few small bags. Compact cars are 4-door cars that should be comfortable for up to 5 adults and have enough trunk space for at least 1 large suitcase and 1 medium suitcase as well as a few smaller bags.