Used 2021 BMW 3 Series for Sale near Thornhill, ON

How much does the 2021 BMW 3 Series cost?

Prices have softened 13.32% compared to this time last year, making it a favourable time to shop this model year.

There are 163 listings available, which gives you a reasonable amount of choice in the used market.

Is the 2021 BMW 3 Series a good car?

Yes — owners rate it 5/5, and that lines up with the 2021 BMW 3 Series’ appeal as a performance-first luxury sedan. The owner feedback repeatedly highlights exceptional handling, powerful performance, and a luxurious interior, with many also praising the safety features, fuel economy, and trunk space. That makes it a strong fit if you want a premium sedan that still works well for everyday driving. With 30.7% of listings marked as good or great deals, you also have a decent chance of finding a compelling example.

Is the 2021 BMW 3 Series reliable?

Owners rate it 5/5, a strong signal of long-term satisfaction.

The owner feedback points to a car that many drivers find reliable, dependable, and easy to live with over time, especially when it comes to the overall driving experience and ownership confidence. The repeated praise for the car’s long-term appeal suggests that many buyers feel comfortable counting on it as a premium daily driver.

For used buyers, the main long-term ownership risk is less about the core appeal and more about making sure the specific car you choose has been well maintained.

Is now a good time to buy a used 2021 BMW 3 Series?

This looks like a moderate, selective buyer’s market, so you can shop carefully without feeling rushed.

• Deal availability: 30.7% of listings are priced as good or great deals.
• Inventory: There are 163 listings available.
• Price trend: Prices have softened 13.32% compared with last year.

If you find a listing below $32,598 CAD, that's toward the low end of the year-round range and worth acting on quickly.

What is the 2021 BMW 3 Series' resale value?

The current average of $32,598 CAD sits slightly below last year's $37,610 CAD.

That price movement suggests the market has already adjusted downward, which can make the car more approachable for you now but may also limit upside for a future seller. If you buy at today’s average, your resale position will depend heavily on condition, mileage, and how well the car has been maintained. The strong premium-sedan appeal should still help support demand, especially for well-kept examples with desirable equipment.

Vehicles with strong owner satisfaction ratings, like this model year's 5/5, tend to retain buyer demand, which supports resale value over time.

Should I buy a 2021 BMW 3 Series 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:

• 30.7% of listings are priced as good or great deals.
• Price trend: Prices have softened 13.32% compared with last year.
• Owners rate it 5/5 — a strong satisfaction signal.

Consider the 2020 if:

• At $32,456 CAD, the 2020 costs less than the current year's $32,598 CAD average.
• It offers a well-rounded premium-sedan feel with especially strong M340i appeal.

Consider the 2022 if:

• At $35,562 CAD, the 2022 costs more than the current year's $32,598 CAD average.
• It adds a more benchmark-like luxury sports-sedan feel with expanded lineup breadth.

The bottom line: If you want the best balance of price, owner satisfaction, and market availability, the 2021 is the primary path to consider. If you are more price-sensitive, the 2020 is the better value play, while the 2022 makes sense if you are willing to pay more for a slightly newer and more polished alternative.

These recommendations are based on CarGurus' proprietary market data from September 22, 2026, CarGurus experts' opinions, and generative AI.