F22 M240i as track car?

[RedSupra]

I was thinking of building a streetable track car. I wanted something with a good auto trans and engine. The 2017 to 2021 BMW F22 M240i has the B58 and ZF8 combo and it can come with RWD or xDrive. Prices for a 50K mile and higher car seem to be in the $25K-$30k price range. The M240i comes standard with 340mm front brakes or the optional 370mm front brakes if the car has the M performance package. One downside would be the wight. The RWD version is a bit over 3500lbs and with xDrive is over 3800lbs. A rear seat delete would save a little wight, but not much. I also don't see much aero for this car.

Any thoughts on a car like this for a more track focused streat car?

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[tomfree]

I was thinking of building a streetable track car. I wanted something with a good auto trans and engine. The 2017 to 2021 BMW F22 M240i has the B58 and ZF8 combo and it can come with RWD or xDrive. Prices for a 50K mile and higher car seem to be in the $25K-$30k price range. The M240i comes standard with 340mm front brakes or the optional 370mm front brakes if the car has the M performance package. One downside would be the wight. The RWD version is a bit over 3500lbs and with xDrive is over 3800lbs. A rear seat delete would save a little wight, but not much. I also don't see much aero for this car.

Any thoughts on a car like this for a more track focused streat car?

A good friend of mine ran an M240i X-drive in One Lap of America this year - the car was quick with minimal setup. It's a solid platform.

 

[razorlab]

Issue with the F-series M240i is that it's challenging to fit a lot of tire under it, and it needs it because of the weight.

 

[tomfree]

Issue with the F-series M240i is that it's challenging to fit a lot of tire under it, and it needs it because of the weight.

Agreed. He ran 17x9 (might have been 18s) and 255s with some lowering springs. You'd have to do some notable fender massaging to get a lot more tire underneath the car. At that point you start to consider "Just go with the M2" instead.

That being said, the car acquitted itself well, but aforementioned owner could get in a dumptruck and be fast.

 

[razorlab]

Other issue is the F22 M240i doesn't come with a LSD. You can fit one but not there by default.

G42 M240i comes with the same rear diff as our supras, and can fit more tire. My 330i for example I fit 275 in the rear without even having to think about it. With coilovers you could do 275 square or 275/295.

All the non-M G series cars basically have the same fitment possibilities.

 

[RedSupra]

I forgot it did not come with and LSD and it would be about $3k+ for one. I didn't realize this car had limit wheel and tire options and it would be very difficult to fit 275s.

The cost of G42s are a bit too high for me as an option.

 

[Mike Usman]

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If you’re in the market for a streetable track car the F22 M240i isn’t a terrible platform and people do run them fairly hard with minimal mods, but you’ll really notice the lack of LSD and tight tire fitment on track compared to something like an M2 or even a Supra. The B58 auto combo is solid and pretty easy to live with daily, but plan on spending on suspension and brake upgrades if you want it to handle consistently at pace. Still, for ~$25–30k with good miles it’s hard to argue it’s a fun, usable chassis even if it’s not a dedicated track weapon.

 

[Mike Usman]

I was thinking of building a streetable track car. I wanted something with a good auto trans and engine. The 2017 to 2021 BMW F22 M240i has the B58 and ZF8 combo and it can come with RWD or xDrive. Prices for a 50K mile and higher car seem to be in the $25K-$30k price range. The M240i comes standard with 340mm front brakes or the optional 370mm front brakes if the car has the M performance package. One downside would be the wight. The RWD version is a bit over 3500lbs and with xDrive is over 3800lbs. A rear seat delete would save a little wight, but not much. I also don't see much aero for this car.

Any thoughts on a car like this for a more track focused streat car?

The M240i is honestly a solid pick for a street/track build, the B58 and ZF8 combo is incredibly tuneable and reliable, so you've got a great foundation to work with. The weight is definitely the elephant in the room though, especially with xDrive, so I'd stick with the RWD if I were you and save yourself those extra 300 lbs. Brakes are decent stock but if you're gonna be doing real track days you'll want to budget for some proper brake pads and fluid regardless of which rotor size you end up with. On the aero side, there's actually a decent aftermarket out there if you dig a little, Vorsteiner and a few others make lips and diffusers that'll help give it a more planted feel at speed. Overall it's not the lightest option out there but the drivetrain is so good that it kind of makes up for it, and parts support is fantastic compared to something more exotic.

 

[razorlab]

The M240i is honestly a solid pick for a street/track build, the B58 and ZF8 combo is incredibly tuneable and reliable, so you've got a great foundation to work with. The weight is definitely the elephant in the room though, especially with xDrive, so I'd stick with the RWD if I were you and save yourself those extra 300 lbs. Brakes are decent stock but if you're gonna be doing real track days you'll want to budget for some proper brake pads and fluid regardless of which rotor size you end up with. On the aero side, there's actually a decent aftermarket out there if you dig a little, Vorsteiner and a few others make lips and diffusers that'll help give it a more planted feel at speed. Overall it's not the lightest option out there but the drivetrain is so good that it kind of makes up for it, and parts support is fantastic compared to something more exotic.

Vorsteiner "aero", lmao. None of that does anything.

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