The GMC Acadia is a midsize SUV with seating for six or seven. There are many trim levels to choose from including the luxurious Denali and off-road oriented AT4. A turbocharged 2.0-litre four-cylinder engine producing 228 horsepower comes standard, but customers can also select a 3.6-litre V6 that delivers 310 horsepower. Cargo capacity is a generous 2,237 litres with all the rear seats down, while maximum towing capacity is rated at 4,000 pounds.