Mechanical Mini 4WD series logo.

The Mechanical Mini 4WD (Japanese: リアルミニ四駆, Riaru Mini Yonku) series is a Mini 4WD car line-up introduced by Tamiya in July 1996. Unlike the rest of the Mini 4WD series which are part-plastic model and part-racing machines, the Mechanical Mini 4WD cars are purely plastic models with no motor or any electric parts.

Usually, the body is molded in clear plastic and requires the user to paint it. The mechanical-like chassis has front wheels which can be steered into positions, and it is electroplated.

The bodyshell of this line-up can be used with other Mini 4WD chassis when given minor modifications with the exception of Vise Intruder. Some have been re-released in other Mini 4WD line-up with a racing chassis such as the VS Chassis version of Diomars-Nero and Spin-Viper.

The manga and anime Bakusou Kyoudai Let's & Go!, as well as its sequels Bakusou Kyoudai Let's & Go! WGP and Bakusou Kyoudai Let's & Go! MAX, featured cars from this line-up. However in the anime, most of the cars' chassis operate like the normal chassis, as opposed to being fully mechanical in the manga. All Mini 4WD cars featured in this line-up were designed by Tetsuhiro Koshita, the manga author of the Let's & Go! series.

List of Mini 4WD cars

*The re mark indicating that they has been re-released with pure-racing chassis.
*The bd mark indicating that they has been re-released as the body set for existing chassis.

Mini 4WD series
1980 Original Mini 4WD · RacingMini4WDlogo · WildMini4WDLogo
1990 TruckinMini4WDLogo · MiniFLogo · SuperMini4WDlogo · FullyCowledMini4WDLogo · MechanicalMini4WDLogo · AeroMini4WDLogo · MightyMini4WDlogo
2000 RCMini4WDLogo · Mini4WDPROLogo
2010 Mini4WDRevLogo
Mechanical Mini 4WD series
1990 Spin Cobra · Proto-Saber Evolution · Buck Blader · Spin-Viper · Vise Intruder · Diomars-Nero