The fifth-generation 4Runner is taller, wider and longer than the vehicle it replaces, and it retains its body-on-frame construction for off-road ruggedness. In a return to its roots, the new 4Runner will offer a 4-cylinder engine (2.7 liters, 157 horsepower), though only on the basic SR5 4x2 model; most 4Runners will be powered by a 270 hp 4.0 liter V6. The V8 engine from last year's 4Runner has been dropped. Model offerings include SR5, Limited, and a new Trail model specially designed for off-road performance. The 4Runner Trail offers Crawl Control and Kinetic Dynamic Suspension System, both of which, until now, were exclusive to Toyota's top-of-the-line off-roader, the Land Cruiser.