California-based tuning shop TAG Motorsports reveals a new BMW M4 project. Dubbed “Black Betty, the M4 Coupe features a widebody kit developed by Vorsteiner and an extensive mods list. The company says that Black Betty has been through a few different transformations, including 14 sets of wheels, 4 different suspension setups, 5 different exhaust system variations, 3 different software upgrade programs, 3 different front lips, 2 different diffusers, 3 different color scheme’s and now, the final setup – a complete widebody transformation.

The car now sits on a set of HRE RS100 wheels, sized 20×10.5 and 20×13.5, front and rear. The wheels are finished in Brushed Titanium Centers and Polished Dark Clear Lip.

TAG GTRS4 HRE 12 750x422

TAG GTRS4 HRE 7 750x422

To lower the car and improve the ride handling, a set of Bilstein Clubsport Coil Over Suspension was installed.

The sound department gets an upgrade also with a new Akrapovic Evolution Line Titanium Exhaust System with Carbon Tips.


Here is the complete modification list:


-Vorsteiner GTRS4 Complete Wide Body Aerodynamic Package
-HRE RS100 20×10.5 and 20×13.5 Wheels finished in Brushed Titanium Centers and Polished Dark Clear Lips
-265/30/20 and 345/25/20 Pirelli PZero Tires
-Bilstein Clubsport Coil Over Suspension
-Akrapovic Evolution Line Titanium Exhaust System with Carbon Tips
-ESS ECU Upgrade (FLASH)
-AWE Tuning Carbon Intake
-Vorsteiner Rear Deck-Lid Spoiler (in Satin Carbon Finish)
-BMW Performance Carbon Mirror Caps (in Satin Carbon Finish)
-BMW Performance Steering Wheel (with Satin Carbon Trim)
-BMW Performance Shifter (with Satin Carbon Finish)
-BMW Performance E-Brake (with Satin Carbon Finish)
-BMW OEM Carbon Interior Trim (in Satin Carbon Finish)
-ARWON Interior Gauge
-TAG Body Color Front Grills
-TAG Side Vents in Body Color
-TAG Front + Rear Seatbacks in Porsche Mint Green
-TAG Front + Rear Seatbelts in Porsche Mint Green
-TAG Calipers in Porsche Mint Green
-TAG Shift Surround in Porsche Mint Green
-TAG Steering Wheel Trim in Porsche Mint Green
-TAG HRE Inner Wheel Lips in Porsche Mint Green
-Complete Vehicle XPEL Clear Bra
-Matte XPEL Clear Bra on Carbon Roof

[Source: f80m3post]