Vemac RD320R

When it was introduced in 2002, it used a C32B V6 sourced from a Honda NSX tuned by Toda Racing;[6] this engine would be bored and stroked to 3.4 L[7] similar to the NSXs running in GT500 at the time.

[8] The RD320R was first introduced by R&D Sport in 2002 at the Fuji 500 km, the second round of the season, replacing one of their Porsche 911 GT3s.

The RD320R dominated the season, achieving a pole position and winning its debut race and scoring three wins in total, although it lost the championship to the Toyota MR-S of Autobacs Racing Team Aguri due to various balance of performance adjustments.

Team Mach's RD320R was notable in that it used an engine sourced from a Porsche 911 GT3 starting in 2009.

An ex-Avanzza Rosso car, chassis number SVCRD320R03H0005, was imported into the United States in 2018[3] and is currently being restored by a private collector.