Which used BMW X5 4x4 should I buy?
Go for the 3.0 diesel. It's smooth and has just the right low-rev punch that a car like this needs. It tips 30mpg across a mix of trips, which is 10mpg better than any of the petrols. What's more, it's the slowest depreciator of the lot.
Trim-wise, you can choose between SE or Sport. Both offer all you'd want including alloy wheels, climate control and a CD player, but we prefer the SE's lower price and softer ride.