what cars have a b58

[DelCarmen]

The BMW B58 engine is a turbocharged 3.0-liter inline-six found in a wide range of modern BMW models, the Toyota Supra, and some limited-production models from Toyota's Gazoo Racing (GR) division. If you're looking for a car with this highly regarded powerplant, your search will primarily focus on BMW's 40i-badged vehicles and the Supra. The B58 is celebrated for its robust power delivery, tuning potential, and smoothness.

The most common cars featuring the B58 include the BMW 3 Series (G20) 340i, the 4 Series (G22) 440i, and the 5 Series (G30) 540i. In the SUV lineup, you'll find it in the X3 M40i, X4 M40i, X5 xDrive40i, and X7 xDrive40i. The Toyota Supra (A90/J29) is essentially built on a BMW platform and uses the B58, making it a unique Japanese car with a German heart. Higher-performance M models, like the M240i and Z4 M40i, also utilize a more powerful variant of this engine.

The B58's reputation for reliability and performance is a key reason for its popularity. It's a modern engine designed with a closed-deck block for strength, making it a favorite among tuning enthusiasts. The following table lists some key models and their respective power outputs from this era.

Model	Body Style	Typical Horsepower (B58B30O1)	Typical Torque (lb-ft)
BMW 340i (G20)	Sedan	382 hp	369 lb-ft
BMW X3 M40i (G01)	SUV	382 hp	369 lb-ft
Toyota GR Supra	Coupe	382 hp (3.0L)	368 lb-ft
BMW M240i (G42)	Coupe	382 hp	369 lb-ft
BMW Z4 M40i (G29)	Convertible	382 hp	369 lb-ft
BMW 540i (G30)	Sedan	335 hp	332 lb-ft

When shopping, note that the B58 has been updated over time. The newer "TU" (Technical Update) version, found in latest models, features upgrades like a new cylinder head and fuel injection system. Whether you want a practical SUV, a luxurious sedan, or a sporty coupe, there's likely a B58-powered vehicle that fits the bill.

[DeErin]

Honestly, I just wanted a fun daily driver that wouldn't break the bank on maintenance. My guy at the shop said to look for anything with a "B58." He wasn't wrong. I ended up with a used 540i, and it's the perfect sleeper. It looks like a normal business sedan, but step on the gas and that inline-six just pulls smoothly and quietly. It's got more than enough power for merging and passing, and it's been dead reliable for me. You can find these in so many different BMWs, it's easy to find one that suits your style.

[GriffinDella]

From a pure performance standpoint, the B58's architecture is its biggest advantage. The closed-deck block design allows it to handle significant increased boost pressure reliably. This makes it a fantastic base for modifications. Whether it's in a Supra or an M240i, a simple software tune can often unlock an additional 70-100 horsepower with no hardware changes. The forged crankshaft and connecting rods from the factory mean it's overbuilt for its stock power level. It's not just about power; the twin-scroll turbo minimizes lag, providing strong torque low in the RPM range.

[PeytonAnn]

We see a lot of these engines come through the dealership for service. The B58 is generally a very solid unit, much more so than some of its predecessors. The common issues we note are minor—things like oil filter housing gasket leaks on higher-mileage examples, which is a standard wear item. The integration of the manifold with the head improves warming up, which is better for efficiency. For a customer, the key is keeping up with regular oil changes using the correct BMW-approved oil. It's a complex engine, but when maintained properly, it's one of the best modern powertrains BMW has produced.

[VanMaci]

I cross-shopped my Supra against a Mustang and a Cayman. The Porsche was out of my budget, and the Mustang felt big. The Supra won me over, and a huge part of that is the BMW B58 engine. You get this incredibly refined, powerful powertrain in a lightweight Toyota body. It's the best of both worlds. The sound it makes is intoxicating, and the acceleration is brutal but always smooth. It feels special every time I drive it. Knowing it's a proven engine used across BMW's lineup gave me confidence in its long-term durability, which was important for a sports car I plan to keep for years.