Small cars – everyone's talking about them because of the price of gas. Extended warranties – even if we only keep the car six months, we all like a product that's backed until it literally falls apart. Utility – we live in a consumer society, so we need vehicles that carry all of our stuff. All-wheel drive – so what if I live in southern California – it rains here, doesn't it? All are points addressed by the 2007 Suzuki SX4, a little crossover wagon thing that, at $15,594 (including a $595 destination charge), is the least expensive all-wheel-drive vehicle on the market. For those reasons and more, the SX4 easily deserved a week of our time for evaluation.