Project Corvette Z06: Sitting and Steering

Improving the driver's seat and steering wheel make a world of difference for fast autocross runs.

Featured makes: Chevrolet
Project BMW 318is: Building A Stroker

While we had the engine out of our 318is, we decided to take the opportunity to rebuild it for more power and torque–because more is always better, right? And there’s ...

Featured makes: BMW
GRM Project Corvette at 2018 SCCA Time Trials Nationals

Our [2004 Chevrolet Corvette Z06 project](https://grassrootsmotorsports.com/project-cars/2004-Chevrolet-corvette-z06/) won the Unlimited 2 class at the inaugural [SCCA Tire Rack Time Trials Nationals](https://www.scca.com/pages/tt-nationals). Here's a couple of our laps during the competition at ...

Swap Science: How To Make A Functional Gas Pedal

What is probably the one thing that separates an okay engine swap from a great one? Yes, the gas pedal.

Featured makes: Mazda | MG
Tonight on Grassroots Motorsports LIVE!: SCCA Runoffs Preview

This week we'll get a sneak preview of the 2018 SCCA Runoffs with Heyward Wagner from Huffaker Racing's garages.

Featured makes: $2000 Challenge
Photo Gallery: Circuit Motorsports Wins $2018 Challenge

One Mustang, one Subaru Justy, and an impressive victory.

Featured makes: $2000 Challenge
Cloning a BMW 3.0 CSL

It all started with inspiration from the famous poster of Hans Stuck airborne at the Nürburgring.

Featured makes: BMW
2018 Lexus NX 300h

Think of the Lexus NX 300 as a fancy Rav4 hybrid and you’re more or less there. The Lexus got some updates for 2018, though. First, there’s a new name: ...

Featured makes: Lexus
Swap Science: Getting Your Clutch Setup Just Right

A Hydraulic Clutch Setup Makes a Miata Drivetrain Right at Home in an MGB Body

Featured makes: Mazda | MG
2019 BMW 3 Series to be Lighter, More Powerful

BMW promises a more immersive driving experience and "sporty proportions" in the 2019 model year. The G20 chassis is longer, but lighter and more powerful than the previous generation.

Featured makes: BMW
2019 Acura RDX SH-AWD A-Spec

Things we learned about the RDX just from reading the press materials. Here, we’ll quote: “Most extensive Acura product redesign in a decade heralds new era for Acura design, performance ...

Featured makes: Acura
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