elements in the monocoque; Honda continued to supply the works team, with Roberto Moreno and Maurício Gugelmin winning one race each. 1988 was to be Ralt's last year as an independent chassis supplier and team in F3000. The RT22 was its first carbon-fibre F3000 car, but with Lola and newcomers Reynard beginning to dominate the category, it achieved little success. In the autumn of 1988, Tauranac sold Ralt to the March Group. The Ralt name reappeared in F3000 in 1991, when the RT23 was manufactured under the March Group's auspices. Jean-Marc Gounon won at Pau in an RT23 entered by Mike Earle's 3001 International team, but otherwise the car was unsuccessful. An updated version, the RT24, was built by Nick Wirth's Simtek company for 1992, but soon after, Ralt withdrew from F3000 for good. Second-hand Ralt F3000 cars were used extensively in Australia's Formula Holden category from its introduction in 1989, fitted with the formula's 3.8-litre Holden V6 engine. Rohan Onslow won the 1989 Australian Drivers' Championship in an RT20, while Simon Kane won the 1990 championship in an RT21. Formula Three cars RT3 has a long history - a 1979 ground effect Formula Three car which was enhanced every year until 1984, becoming the dominant car in the formula. Ayrton Senna won the 1983 British Formula Three Championship driving an RT3. RT30 was introduced for the flat-bottom rules coming into effect in 1985. This was notable mainly for being very asymmetric - it had only one sidepod containing a radiator, and a deformable structure panel on the other side. The RT30 was, like many Ralts, developed over several seasons, evolving by the 1985–6 seasons into a highly competitive car, although some teams converted their old RT30s into flat-bottom cars and enjoyed a measure of success with these. RT31, the 1987 car, applied some of the honeycomb ideas from the RT21 F3000 car; it was fairly competitive but Gary Brabham's experiments with lowering the engine showed the way ahead. RT32: for the 1988 season, Brabham's modifications were incorporated and a honeycomb/carbon tub was adopted. The RT32 theme saw Ralt through to the end of Tauranac's time with them, subsequent RT33 (1989)- RT35 (1991) cars essentially being developments of this basic model. The 1992 RT36 was designed by Andy Thorby and lightly revised by Tauranac for 1993 as the RT37. These cars were not particularly successful in Formula Three (in part