BMW Stuffed a 4.0-Liter V8 into an E46 M3 CSL

Choices: BMW M3 – AutoLobotomy

BMW M3 GTR E46 specs, performance data

BMW M3 CSL anniversary tour - PistonHeads UK

The Definitive BMW E46 M3 Buyer's Guide

A Perfect One-Car Solution: The E46 M3 Touring - BimmerLife

BMW M secretly built an M5-engined E46 M3 CSL, and this is it

2002 BMW M3 GTR Straßenversion

2003 BMW M3 CSL (E46) PH Heroes - PistonHeads UK

No Reserve: Modified 2003 BMW M3 Coupe for sale on BaT Auctions - sold for $13,250 on March 18, 2021 (Lot #44,758)

2006 BMW M3 E.S.S. Supercharged Coupe WBSBL93436PN64561

BMW Classic Offers A Glimpse Of The E46 M3 GTR - BimmerLife

BMW Shows Secret CSL Prototypes Including V8-Powered E46 M3 For The First Time