Review: 2023 BMW XM misses the ultra-luxury bull’s eye

The ultra-luxury SUV is a relatively new phenomenon. Lamborghini, Bentley, Aston-Martin, Rolls-Royce, and even Mercedes-Benz have developed offerings that start no lower than $150,000 and can reach $200,000 or even more. Now, BMW is getting into the game with its first standalone BMW M model since the M1 mid-engine supercar of 1978. The 2023 BMW…