Bantam-sized luxury SUVs are a trendy and growing niche. Tight European streets and high fuel prices explain their popularity there, but here they promise posh brand cachet and SUV attributes for a more attainable price. Unlike some direct competitors, namely the Mercedes GLA, the little Audi Q3 actually delivers a premium experience in a small package. Just don't expect a bargain price, most Q3s on dealers' lot scratch $40,000. (Still, that's $7,000 less than a comparably equipped Audi Q5.)