New BMW X5 arrives with extra power, self-driving, lots of letters

BMW can't be faulted for going where the customers lead, and in recent years that's meant more SUVs from the brand once known exclusively for sports cars and sports-car-like sedans. The third generation of the X5, BMW's most successful SUV, was revealed today sporting the requirements of any updated luxury ride — more power, more efficiency and even tech that tiptoes into self-driving. But the decklid's starting to look like someone spilled a bowl of alphabet soup.

To start with, the 2014 X5 arrives in three configurations; the X5 sDrive35i and X5 xDrive35i, powered by BMW's twin-turbo, 300-hp inline six, and one motivated by the thumping 445-hp twin-turbo V-8. The sDrive35i offers only rear-wheel-drive, a way for BMW to extend the X5's market to sunnier climes and lighter wallets. A few months after those models arrive this fall, a diesel-powered X5 xDrive35d will follow in early 2014 — all using BMW's eight-speed automatic, all expected to be somewhat more efficient than the outgoing model.