At the annual SEMA Show in November, Chevrolet showed off The Chevy Off-Road Concept, which takes high-performance desert running to the next level. This four-passenger off-road vehicle is based on a modified Silverado chassis and uses a customized pickup body. It shows how far Chevrolet off-road performance can go. The Off-Road Concept gets its power from the 650-horsepower 6.2-liter V8 Chevrolet Performance LT4 supercharged crate engine. This is paired with a 10-speed automatic transmission that sends power to a two-speed transfer case. 37-inch off-road tires come mounted on 20-inch beadlock wheels. These give the Off-Road Concept the traction and height it needs to conquer the most difficult terrain. In case…