Tesla Model 3 vs BMW 3 Series: Which Costs Less to Own? (2026)

For decades the BMW 3 Series was the sport sedan β€” the default choice for drivers who wanted something quick, premium, and fun. Then the Tesla Model 3 arrived and rewrote the formula with instant electric torque and software-first design. If you're cross-shopping these two, here's how they really compare on cost, performance, and the ownership experience.

Price: closer than you'd think

A base BMW 330i starts in the mid-$40,000s, right alongside the Model 3 β€” so on entry price they're well matched. Step up to performance and the gap reverses interestingly: a BMW M340i runs about $64,900, while a Model 3 Performance undercuts it and is dramatically quicker to 60 mph. Dollar for dollar, the Tesla gives you more straight-line performance at every rung.

Running costs: the Tesla's knockout punch

This is where the comparison stops being close. The BMW needs premium gasoline and German-brand servicing β€” both expensive β€” and gets around 26 mpg in the M340i. The Model 3 charges at home for the equivalent of a fraction of the per-mile cost of premium fuel, and it has no oil changes, no spark plugs, no transmission service, and rarely needs brakes. Over a typical few years of ownership, the difference in fuel and maintenance alone runs into the thousands in the Tesla's favor.

Performance & tech

Where the BMW still wins

So which is cheaper to own?

On total cost of ownership, the Model 3 wins clearly β€” similar or lower purchase price, far cheaper fuel (no premium gas), and much lower maintenance than a German performance sedan. The 3 Series earns its keep on interior feel, driving character, and brand, not on cost. If your decision is mostly financial, the Tesla is the easy answer; if it's emotional, drive both.

Put real numbers to it: our Tesla vs gas cost calculator lets you pit the Model 3 against a premium gas sedan with your miles, state, and rate β€” including financing, insurance, and depreciation. And if you go electric, ordering through a referral link can add Tesla’s latest new-buyer perk.

Run your numbers in the calculator β†’

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