Used 2021 BMW M5 for Sale nearMilwaukee, WI

Is the 2021 BMW M5 a good car?

$66,652.71 to $71,881.34 is the year-round price range for this model, and the 2021 BMW M5 fits buyers who want a high-performance luxury sedan with everyday usability. The overview describes it as a serious-speed sedan with xDrive all-wheel drive, a rear-wheel power bias, refreshed styling, and a new iDrive system with a 12.3-inch touchscreen, wireless Apple CarPlay, and Android Auto.

That combination makes it especially appealing if you want modern tech and strong all-weather traction without giving up the M5’s core performance mission. The tradeoff is that it is still an expensive car to buy, maintain, and repair, so it makes the most sense if you value capability and refinement enough to accept the ownership costs. 32.6% of listings are priced as good or great deals, which gives you some room to shop selectively.

Is the 2021 BMW M5 reliable?

The 2021 BMW M5 is described as relatively new, with no major reported problem areas or concerns. The overview also notes that it blends serious performance with everyday usability, which is a good sign for shoppers who want a well-rounded luxury sedan rather than a highly specialized machine.

Even so, high-performance cars still deserve careful inspection for neglect, abuse, or do-it-yourself tuning. For a used buyer, the long-term ownership risk is less about a known model-wide flaw and more about how well the previous owner maintained and used the car.

What should I look for when buying a used 2021 BMW M5?

Accident-free inventory is solid at 75.6% — always verify the vehicle history report.

You should prioritize a pre-purchase inspection, especially on a performance sedan that may have been driven hard or modified. Focus on overall condition, maintenance records, and signs of neglect or tuning, since those factors matter more than mileage alone on a car like this.

Is now a good time to buy a used 2021 BMW M5?

This looks like a moderate, selective buyer’s market, so you can shop carefully and still find worthwhile listings.

• Deal availability: 32.6% of listings are priced as good or great deals.
• Inventory: There are 86 listings available.
• Clean inventory: 75.6% of listings are accident-free.

If you find a listing below $66,652.71, that's toward the low end of the year-round range and worth acting on quickly.

Should I buy a 2021 BMW M5 or consider a different year?

If you're weighing the 2021 against nearby model years, here's how to think about it:

Choose the 2021 if:

• 32.6% of listings are priced as good or great deals.
• Accident-free inventory is solid at 75.6% — always verify the vehicle history report.

Consider the 2022 if:

• The M5 CS adds carbon-fiber construction and track-ready performance.

The bottom line: The 2021 is the better all-around pick if you want the M5’s blend of speed, usability, and updated tech without chasing the most extreme version. If you are price-sensitive, the 2021 also gives you a broader shopping pool and a more approachable path into the model than the 2022’s higher-performance focus.

These recommendations are based on CarGurus' proprietary market data from September 4, 2026, CarGurus experts' opinions, and generative AI.