The EuroBrun ER188was a Formula One car built and raced by the EuroBrun team for the 1988 Formula One season.
The car was designed by Mario Tolentino and was powered by a normally aspirated Cosworth DFZ engine. Three ER188 chassis were produced. Two cars were entered for 1987 Formula 3000 champion Stefano Modena of Italy and long-time Brun sports car stalwart, 33 year old F1 rookie, Argentine Oscar Larrauri. Despite a solid, if unspectacular start to the season, EuroBrun were struggling as money ran low. There was internal trouble when in May 1988 Brun unsuccessfully tried to replace the Larrauri with German driver Christian Danner.
It turned out that the German driver was too tall for the monocoque of the ER188. Since the team had no money for any modification, it kept Larrauri in the second car to the end of the season. In the first eight events Larrauri only missed the cut twice and Modena would have qualified for them all were it not for two disqualifications for missing a weight check in practice at Monaco, and for having too high a rear wing in Mexico. Sadly starts didn't turn into finishes, with engine failures, clutch and gearbox problems, and even a flat battery meaning that Modena's 11th place at the Hungarian Grand Prix would be the car's best result. At the end of the season in December the team entered an ER188 for Fabrizio Barbazza in the 1988 Formula One Indoor Trophy at the Bologna Motor show. Barbazza was knocked out in the first round by the Minardi of Luis Pérez-Sala.
For the 1989 Formula One season the car was updated to ER188B specification and used a Judd CV V8 engine and Pirelli tyres. The team entered just one car for rookie Gregor Foitek. Foitek would only make it through Friday pre-qualifying once, at the first race in Brazil but he failed to qualify for the race. The replacement ER189 designed by George Ryton was introduced at the German Grand Prix.