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).
Sales in the United Kingdom were strong right up to the end, but by the time the last Nova was built in the beginning of 1993, it was looking very dated in comparison to more modern rivals like the Peugeot 106 and the Renault Clio. Vauxhall dropped the "Nova" name in 1993 when their version of the Opel Corsa B made its debut, and later models were sold as the "Vauxhall Corsa" instead.
While critics raved about the Calibra's looks and performance, they were less keen on the interior which, despite sporty looking seats and some nice detailing, used a dash lifted straight from the Vectra. The Vectra also donated most of its chassis, which led to some less than flattering road tests at the time. The critics were especially harsh about the gearchange, vague steering and low-speed ride quality, although praise was heaped on the car for overall refinement, keen prices, practicality and performance.
While the Ipanema clearly succeeded the Marajó, production of the Chevette (by now in sedan form only, the hatchback having been discontinued after the 1987 model year) and of the Kadett noticeably overlapped; the newer model was placed above the old one in Chevrolet's lineup. While Chevrolet entertained the possibility of a pick-up version of the Kadett E, it never materialized.