BMW introduced the X7 just last year. It's the company's biggest SUV, and it provides high levels of refinement, performance and technology. It can also seat seven passengers. You can say the same thing about the smaller BMW X5, but the X7's third-row seat is roomier, making it a more comfortable and viable vehicle if you're frequently taking along a lot of passengers.

The 2020 BMW X7 adds a bit more interest with the introduction of a new range-topping M50i model. It takes the existing V8 engine from the xDrive50i and enhances it to produce a rather stout 523 horsepower. It's enticing, for sure, but we contend that the base 335-hp six-cylinder engine in the xDrive40i is more than enough for the average driver.

We give the X7 high marks for overall comfort, performance and interior quality. It also has well-tuned advanced driver safety aids that alleviate some of the burden of driving. On the downside, it can be rather expensive compared to other luxury SUVs, and some of its controls take getting used to. As such, you might prefer the new Mercedes-Benz GLS — it earns slightly higher scores in Edmunds' expert rankings — but overall these two big luxury SUVs are pretty evenly matched.