Seat's Ibiza will be one of the first models to get the VW Group's all-new 1.6-litre common-rail diesel engine.
From June, you'll be able to order an Ibiza with the new 104bhp 1.6 TDI CR engine, which promises big improvements in efficiency and refinement over the previous generation of four-cylinder turbodiesels.
Although it won't match the three-cylinder 1.4 TDI Ecomotive for fuel economy and emissions, the new model will return an average 67.3mpg and emit just 109g/km of CO2. The current 104bhp 1.9 TDI model can only manage 60.1mpg and 124g/km.
The new engine will be introduced to a range of VW Group products, including Volkswagen's latest Golf in July and the all-new Polo from October.
Seat's Ibiza 1.6 TDI CR comes with a five-speed manual gearbox and diesel particulate filter (DPF) as standard.
Prices have yet to be confirmed, but the car will arrive in showrooms in early July.