Roof spoilers: Eye sore and they suck

[Albino09]

Reviving this thread as I am contemplating putting the ACS piece on. I am a fan of the look and don’t really care about the negligible $ price difference for gas on a weekend car. Honestly, I think the CSL trunk is one of the worst looking mods for this car and is way too common… to each their own.

I'd like to see the same aero analysis of the standard lip spoiler vs. the CSL duckbill. I wouldn't be surprised if the duckbill is purely an aesthetic appearance thing to help justify the MSRP of the CSL over the base M3.

[SUPREM3///]

Reviving this thread as I am contemplating putting the ACS piece on. I am a fan of the look and don’t really care about the negligible $ price difference for gas on a weekend car. Honestly, I think the CSL trunk is one of the worst looking mods for this car and is way too common… to each their own.

Boo this man

[powerbait]

Blasphemy! I can’t look at an e46 without a CSL trunk, they look funny, I only prefer the OEM style though.

[Advorsor]

Reviving this thread as I am contemplating putting the ACS piece on. I am a fan of the look and don’t really care about the negligible $ price difference for gas on a weekend car. Honestly, I think the CSL trunk is one of the worst looking mods for this car and is way too common… to each their own.

[Arith2]

I've been silent about them for a while but man do they look stupid. This is my opinion, of course. However, impractical mods look stupid to me. They create vortices in the wrong place, separate the air from the body, and cause low pressure where it shouldn't be. All our cars have a spoiler or duck bill at a minimum. If you have a roof spoiler, you're losing the benefit almost completely and still causing more drag. They look dumb and cost more money in gas.

Here's a PHD that proves this in Torronto. I found this video and am so thankful I did. I prefer scientific evidence to back my arguments...