The entry-luxury crossover market is crowded with tough competitors. It’s a constantly changing segment where at least half of the serious players are refined and improved at any given time. The 2007 Lexus RX 350, for example, is newly updated – but now looks almost dated compared to the new Acura MDX. Then you’ve got those darn Europeans to deal with, the BMW X3 and the Mercedes-Benz M-Class, and the Yanks, too: the Cadillac SRX and the Lincoln MKX are for sale on dealer lots. The Buick Enclave will hit showrooms soon, and it looks promising. Aye, it’s good to be a crossover shopper in a luxury grade world.