Dare to Compare: Custom M4 Coupe with Dinan Stage 3 Upgrade and M4 GTS

Much has been written and said about BMW's legendary M4 GTS. As this car is extremely limited in quantity, Isringhausen has created a one-of-a-kind M4 that mimics the M4 GTS in performance. In this series of videos, Isringhausen BMW's Nick Drum compares and contrasts the two vehicles, paying particular attention to the numerous upgrades that have been made to the custom M4. 

Chapter 1: Exterior and Engines

Chapter 2: Interiors

Chapter 3: Under the Cars

Chapter 4: Wheelhouses, Rear Wings and Trunks