The Toyota Tundra is a full-size pickup truck introduced by Toyota .Toyota Tundra light-duty pickup trucks equipped with six-cylinder engines will see an increase in power for the 2011 model year. The 4.0-liter V-6 is now rated at 270 horsepower and 278 pounds-feet of torque, up 34 horsepower and 12 pounds-feet from the 2006-2010 Tundra.The V-6 engine is mated to a five-speed automatic transmission, while the V-8 engines are each paired to a six-speed automatic. Get maximum traction with two- or four-wheel drive, and tow up to 9,000 pounds or with a max payload capacity of 1,555 pounds.