Buying a used luxury SUV can feel like a gamble. Some become expensive headaches the moment the factory warranty expires.

Lexus is Toyota's luxury division, but Toyota often builds a Lexus-badged twin to capture buyers who want that extra refinement without the higher sticker price. The Grand Highlander and the Lexus TX mimic that pattern as closely as any two vehicles have. Both are three-row midsize SUVs, both ride on a version of the same platform, and both come from the same Toyota Motor Manufacturing plant in Princeton, Indiana.

As the second quarter of the year comes to a close, sales figures from automakers have flooded in. In a turbulent year, there have been a lot of surprise wins and disappointing losses. However, in the world of luxury vehicles, there is one nameplate that continues to hold on to its dominance.