* = Fuel consumption and CO2 emissions figures shown are determined according to the NEDC homologation regulations (R (EC) No. 715/2007 and R (EC) No. 692/2008, applicable version), which allows comparison with other vehicles. From September 1, 2017, fuel consumption and CO2 emissions data for certain new vehicles are determined using the new World Harmonised Light Vehicle Test Procedure (WLTP). For easy comparison between new and older vehicles the relevant figures are re-calculated into NEDC. Please contact your Opel dealer for the latest information.
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The GSi's engine mapping had been carried out by Opel tuning specialists Irmscher. A model with the 82 PS (60 kW) 1.4 L multi point fuel injected engine, which was otherwise mechanically identical to the GSi, also became available as the Nova SRi in the United Kingdom. In January 1988, a turbocharged version of the Isuzu diesel engine was introduced, with power increased to 67 PS (49 kW).[8]
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