The 2006 Suzuki Grand Vitara’s 2.7-liter V6 engine offers one of the highest horsepower ratings in its class, compared across base models. Competitors that offer multiple engine choices catch up with Suzuki as you climb the trim tree, however, and do so at comparable prices. Despite this, credit Suzuki for offering a powerplant that is competitive at the upper reaches of the segment – at the same time offering base trim shoppers a boost in power.