Follow along as we build our newest 4400 Ultra4 car! Miller Motorsports is a leading chassis in the off-road industry. We are excited to kick off this new build and hope to see you follow along as we race to KOH 2021

Wrapping the shop with our top tier supporters Summit Racing, Dirty Life Wheels, Tom Woods Driveshafts, BFGoodrich, Miller Motorsports, Pride Outfitting, and more!

Progress on the chassis and support from our partners! If you aren't following this build yet, you should be. This iconic Miller Motorsports car is coming to life from the ground up with the Proving Grounds Racing Team

Post race for the 4570 from Ultra4's Beat Down in Area BFE

PGR 4600 team takes 2nd place at Ultra4's Beat Down at Area BFE!

Ever since the start of our program Tom Woods Driveshafts has been an integral part of our success. These drive lines can take a beating!

As we build our new Miller Pro Chassis check out the progress from week 1! We are working on updating weekly videos of the 4400 build for 2021 KOH

The first few steps on building our pro chassis here in the shop. Getting ready to hang the rest of the upper chassis once the sub frame is formed!

Can't a guy work in peace!? The teams got a long way to go cleaning tubes and building the chassis from the ground up, and all the video guys wanna do is act a fool

Proving Grounds Racing battling it out at the Ultra4 Tear Down in Tennessee!