Which Luxury Car is Most Reliable at High Mileage?

Great question. I've got a dataset of 558,000 car sales with condition scores. Let me filter for luxury brands with 100k+ miles and see which ones maintain the best condition.

Here's what the data shows. Porsche leads but with only 155 cars in the sample. Lexus is the real winner here - 3,092 cars averaging 150,000 miles with a condition score of 24.9. That's significantly higher mileage than the German brands while maintaining better condition.

Let me compare the condition when they're nearly new (under 50k miles) versus when they hit 150k+. This shows the real degradation curve.

Look at the 150k+ bars. Lexus holds at 22.6 while BMW and Mercedes drop to 20.7, Acura to 20.4, and Audi tanks to 18.7. Lexus loses about 37% of its condition score over 150k miles - the smallest drop of any brand. Audi loses 46%.

Let me rank Lexus models by their condition score at 100k+ miles.

The GS 350 leads at 30.7, followed by the RX 350 (30.2) and LS 460 (29.9). These are the sedans and SUVs that just keep going. The ES and IS models are also solid choices - all above 25.

That's the right question. Let me compare Lexus directly against Toyota at every mileage bracket.

Lexus beats Toyota at every single mileage point. At 150k+, Lexus is at 22.6 vs Toyota at 20.1. The Toyota reliability DNA is clearly there, but Lexus's premium build quality - better materials, tighter tolerances - actually does translate to better durability over time. You're not just paying for the badge.

Let me check how each brand's selling price compares to market value at 150k+ miles.

Interesting twist here. Mercedes actually leads value retention at 72% of market value, followed by BMW and Lexus tied around 59%. Audi brings up the rear at just 44.7%. So Mercedes holds value best, but Lexus has the best condition. If you want the car that will actually run well at high mileage, Lexus is still the answer.

If you're buying a used luxury car with serious miles, Lexus is the clear winner. The data shows: 1. **Best high-mileage condition** among mainstream luxury brands (Porsche edges them but with tiny sample size) 2. **Smallest condition degradation** - only 37% drop from new to 150k+ miles 3. **Toyota DNA plus premium build** - beats even Toyota at every mileage point 4. **Solid value retention** - 59% of market value at 150k+ miles The GS 350, RX 350, and LS 460 are your best bets. They're built to go the distance.