The GMC Acadia is a cousin of the Chevrolet Blazer, though with more muscular styling. All models are available with a nine-speed automatic transmission. The Acadia offers a selection of three engines, starting with a naturally aspirated four-cylinder rated at 193 horsepower. Next up is a turbocharged four-cylinder engine producing 230 horsepower. Finally, buyers can opt for a V6 with 308 horsepower. All-wheel drive is offered on mid-level models or higher. Maximum towing capacity is rated at 4,500 pounds.