The Porsche Cayenne receives a bump in power for 2008, as well as some minor styling upgrades that make the sporty SUV more aerodynamic and more fuel-efficient. The 2008 Cayenne is available with a choice of three engines. The base 3.6-liter V6 gets a goose of 43 horsepower, to 290 horsepower, which drives the vehicle from 0 to 60 more than a second faster than the engine it replaces, while the new 4.8-liter V8 (available on the S trim package) receives a boost of 45 horsepower, to 385 horsepower. At the top of the heap is a twin-turbocharged V8, which produces a whopping 500 horsepower, up 50 horsepower from the previous year. Porsche achieved these boosts in power via direct injection (on all three engines) and variable valve timing (on the V8 engines). The direct injection, by the way, also helps make the engines more fuel-efficient. Exterior changes are subtle and include a revised front end, which helps improve aerodynamics, as well as new headlights and taillights and a new rear spoiler. All-wheel drive is standard across the line. The 2008 Cayenne also gets more powerful brakes, and such new features as the Porsche Dynamic Chassis Control system, which helps keep the vehicle level during hard cornering. And with all that additional power under the hood, you might be using that new leveling system more than you think.