Mazda MXR-01

The Mazda MXR-01 was a Group C sportscar used by Mazda's factory team Mazdaspeed in the 1992 World Sportscar Championship season. It would be the first Mazda entry in sportscars since the inception of their Le Mans project in 1983.

Development
Following Mazda's success in winning the  1991 24 Hours of Le Mans with their  rotary powered  787B, Mazda had hoped to continue in sportscar racing and prove that their lone win was not a fluke. However, with the reorganizing of the <span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;"> World Sportscar Championship<span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;"> <span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;">in 1992 by the <span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;"> FIA<span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;">, Mazda found itself with a problem in that their rotary engines were now banned. Instead, teams would be required to use technologically advanced <span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;"> V10<span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;"> <span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;">powerplants similar to those used in <span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;"> Formula One<span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;line-height:19.194442749023438px;">. Mazda, not having had many racing engines outside of their rotaries, decided that the cost of developing an entirely different engine was not worth it, especially with budgetary concerns within the company. At the same time, if Mazda were to use a V10 powerplant, they would be required to build an entire different car, since the 787B could never hold a V10.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.194442749023438px;color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;">Thus, Mazda came to the decision of buying an existing V10 engine. They turned to Judd (Engine Developments), who had developed their GV10 3.5L V10 for Formula One in 1991, and arranged a deal in which the Judd engines would be badged as Mazdas, carrying the name MV10.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.194442749023438px;color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;">For a new chassis, Mazda also turned to an existing design, this time going to Tom Walkinshaw Racing (TWR), who had worked with Jaguar until they dropped out of sportscar racing at the end of 1991. Jaguar's final entry, the XJR-14, was offered by TWR to customers for 1992, and Mazda jumped at the opportunity to use the car which helped win the 1991 championship for Jaguar. Again, the car would be rebadged and renamed as the Mazda MXR-01.

<p style="margin-top:0.4em;margin-bottom:0.5em;line-height:19.194442749023438px;color:rgb(0,0,0);font-family:sans-serif;font-size:12.499999046325684px;">Unfortunately, although the XJR-14 was the 1991 champion, it had not been updated since the end of that season, and Mazda had neither the technical understanding of the XJR-14 nor the cash flow to continually upgrade their MXR-01 on the same scale as Peugeot and Toyota were able to do in 1992. Their Judd powerplant was also considerably underpowered in comparison to the other factory teams.