Mazda RX-01
Mazda RX-01 is a concept car produced by Mazda Motor Corporation that debuted at the 1995 Tokyo Motor Show
Tokyo Motor Show
The is a biennial auto show held in October-November at the Makuhari Messe, Chiba City, Japan for cars, motorcycles and commercial vehicles. Hosted by the Japan Automobile Manufacturers Association , it is a recognized international show by the Organisation Internationale des Constructeurs...

. Created partially in response to the state of the economy at the time and the resultant shrinkage of the high-end sports car market, the RX-01 undertook a back-to-basics approach of a compact, simple, fun-to-drive, yet inexpensive sports car much like the first generation RX-7
Mazda RX-7
Series 1 is commonly referred to as the "SA22C" from the first alphanumerics of the vehicle identification number. This series of RX-7 had exposed steel bumpers and a high-mounted indentation-located license plate, called by Werner Buhrer of Road & Track magazine a "Baroque depression."In 1980...

. (By this time, the RX-7 had evolved into an uncompromising "super sports car" boasting ultra high performance with little creature comfort and a high price tag.) The RX-01 boasted a radical front end with a floating bumper/spoiler made possible by its compact rotary engine as well as a claimed true 2+2 seating arrangement. More significantly, however, it marked the first public appearance of the next generation of Mazda rotary engine design, the 13B-MSP. A naturally aspirated engine, its exhaust ports are now located in the side housing instead of the periphery of the rotor housing, thus preventing overlapping intake and exhaust port timing. This has several benefits: higher output, improved thermal efficiency, better fuel economy, and cleaner emissions. While it was hoped by enthusiasts that the RX-01 would be put into production as the next iteration of Mazda's rotary sports car and made available to world markets (the RX-7 was discontinued in North America after 1995), the declining interest in sports car over SUVs and Mazda's financial state at the time conspired to keep RX-01 merely a concept car. However, the 13B-MSP would go on to be further developed into the eventual RENESIS engine that powers the RX-8
Mazda RX-8
The Mazda RX-8 is a sports car manufactured by Mazda Motor Corporation. It first appeared in 2001 at the North American International Auto Show. It is the successor to the RX-7 and, like its predecessors in the RX range, it is powered by a Wankel engine. The RX-8 began North American sales in the...

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