While the 5.3-litre V8 (355 horsepower) comes standard in the Tahoe, the RST edition is powered by a 6.2-litre V8 (420 horsepower) paired with a 10-speed automatic gearbox. The Tahoe is not as long as the Suburban and can tow up to 8600 pounds (3901 kilos) when properly equipped. Surprisingly, this enormous brute's fuel consumption is a competitive 10.5 L/100 km on the highway.