An Opel Astra GTC variant powered by a new 1.6-litre turbo petrol engine promising more torque and improved efficiency is set to arrive in Australia next month.
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Following the engine's debut in the Opel Cascada, Opel has announced the all-new 1.6-litre four-cylinder SIDI (spark ignition direct injection) Turbo engine will now power the front wheels of the three-door Opel Astra GTC hatchback.

Producing 125kW of power between 4250-6000rpm and 280Nm of torque between 1650-4250rpm (the latter with an overboost function), the 1.6 SIDI Turbo is claimed to deliver a 15 per cent improvement in fuel consumption and CO

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emissions over its identically sized predecessor.

Opel 1.6 SIDI Turbo

While the current

132kW/230Nm turbocharged 1.6-litre unit returns figures of 7.3 litres per 100km and

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emissions of 171

grams per kilometre

under the New European Driving Cycle, the new engine claims 6.1L/100km and 143g/km

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.

Performance of the 1.6 SIDI Turbo-powered GTC is down slightly from the existing $34,990 GTC Sport model, however, with its 0-100km/h time of 8.6 seconds and a 219km/h top speed coming up just short of the old car's 8.3-second and 220km/h ability.

Opel Australia’s Michelle Lang told CarAdvice that Opel Astra GTC Sport models powered by the new 1.6-litre engine were expected to start arriving in mid July, but would not confirm to what degree prices would be affected as a consequence of the update.

The new engine was initially revealed in April, along with plans for a new eight-speed automatic transmission.