Lets talk E36 vs E46 for a track car
Lets talk E36 vs E46 for a track car
Author
Discussion

LTW_Yup

Original Poster:

3 posts

8 months

Saturday 19th July 2025
quotequote all
The initial message was deleted from this topic on 06 March 2026 at 09:54

Steve H

6,879 posts

218 months

Saturday 19th July 2025
quotequote all
I have a 36 M3 and have raced a 36 328 so I’m biased but………….

The biggest/only pace restriction on a 36 is tyre size as far as I can see. Pretty much everything else has been developed for the 36 in terms of powertrain, suspension etc. But if you want big widths the 46 accommodates better.

Possibly the 36 can be modified but I am not sure, possibly it doesn’t actually need the same width to do the same pace.


But 36s are still racing competitively against current machinery and 46s in power/weight classes, there’s not much else from the 90s that is.

LTW_Yup

Original Poster:

3 posts

8 months

Saturday 19th July 2025
quotequote all
Ive got a 17x9 square setup on mine at the moment with a 245/40/17 but could go up to a 255 so tyre wise i can go fairly wide.

I think it might just be worth putting the money into the 36 chassis.

Steve H

6,879 posts

218 months

Sunday 20th July 2025
quotequote all
I’m inclined to agree, the 36 is just a great thing to have.

For comparison on the tyres, I was out in a 46 recently that had 295 all round. Massive grip but as I said before, the 36 may be able to do the same thing on less rubber.

Bright Halo

3,825 posts

258 months

Sunday 20th July 2025
quotequote all
Is there much weight difference between the two?

Steve H

6,879 posts

218 months

Sunday 20th July 2025
quotequote all
Probably around 100kg depending on spec etc.

braddo

12,053 posts

211 months

Friday 25th July 2025
quotequote all
To me it doesn’t make sense to sink a load of money making a 3-series a lot quicker than what you have now. I would suggest you fix and enjoy the E36 and then when you want a speed upgrade go to a caterham.

The thousands you will spend on upgrades and running costs can finance a £20k caterham easily, which is quicker, can do more track miles every day and hold their value.

https://www.pistonheads.com/buy/listing/18532050

Or a hot Honda Elise or VX220 turbo etc for something with more crash safety and/or usability.


Tommie38

969 posts

217 months

Sunday 27th July 2025
quotequote all
I guess I m partly qualified to answer having owned E36 M3 Evo and E46 M3. Both modified and tracked but not dedicated track cars. I ve had something like 5 friends with E92 M3s in various flavours so have a reasonable amount of seat time in those too.

If it were my money I d be buying an E92 M3 or even an F82 M4 and doing less mods. Brakes, suspension, tyres and seats. I d probably go DCT. Main reason for me would be the speed difference. E92 is a step up and the F82 cars are miles faster, particularly if you tune the motor.

I know not that helpful an answer !

Edited by Tommie38 on Sunday 27th July 14:36

Digga

46,267 posts

306 months

Tuesday 5th August 2025
quotequote all
Tommie38 said:
I guess I m partly qualified to answer having owned E36 M3 Evo and E46 M3. Both modified and tracked but not dedicated track cars. I ve had something like 5 friends with E92 M3s in various flavours so have a reasonable amount of seat time in those too.

If it were my money I d be buying an E92 M3 or even an F82 M4 and doing less mods. Brakes, suspension, tyres and seats. I d probably go DCT. Main reason for me would be the speed difference. E92 is a step up and the F82 cars are miles faster, particularly if you tune the motor.

I know not that helpful an answer !
Is faster always 'better' though?

The E36 is almost a sweet spot for chassis weight and with any 2.5+ 6 cylinder, it's plenty fast. It's easy to keep upgrading the platform, but having something a bit more affordable is not without merit on track days.

Tommie38

969 posts

217 months

Wednesday 6th August 2025
quotequote all
Digga said:
Tommie38 said:
I guess I m partly qualified to answer having owned E36 M3 Evo and E46 M3. Both modified and tracked but not dedicated track cars. I ve had something like 5 friends with E92 M3s in various flavours so have a reasonable amount of seat time in those too.

If it were my money I d be buying an E92 M3 or even an F82 M4 and doing less mods. Brakes, suspension, tyres and seats. I d probably go DCT. Main reason for me would be the speed difference. E92 is a step up and the F82 cars are miles faster, particularly if you tune the motor.

I know not that helpful an answer !
Is faster always 'better' though?

The E36 is almost a sweet spot for chassis weight and with any 2.5+ 6 cylinder, it's plenty fast. It's easy to keep upgrading the platform, but having something a bit more affordable is not without merit on track days.
It sounded like the OP already had the above and was wanting more. Nothing wrong with keeping what he has. But as a basis for big spend, I think the other platforms are better.

I forgot to mention, I also had a stripped and caged E30 about 20 years ago as well. No heater, I remember freezing on the way to track. Been there and done it…

isleofthorns

661 posts

193 months

Saturday 23rd August 2025
quotequote all
had a track only e36 3.0 for several years. Still my fondest track car and I miss selling it. I got tired of trailering and wanted that bit more punch...

As much as I love the e36 chassis, if I were to do it again, I'd start with an e92... just love that v8!