Unless you plan to drag-race down the interstate, you don't need turbo anything. Most such options are expensive, tend to break down, and waste gas. . Avoid dark-colored cars if you live in a warm climate. Light-colored cars will be colder in winter, though heating a car takes less energy than cooling it. As the weather gets colder, it's time to think clearly about windows.
Windows waste plenty of energy - and money.
Install weather-stripping on drafty doors and windows. Storm doors and windows should have weather-stripping on all moveable joints. . Use window quilts or shutters over your windows to keep the cold out in the winter and the heat out in the summer. An uninsulated drape can cut window heat loss by one-third. An insulated drape can reduce it by half. .