The Japanese manufacturer’s cars are efficient and fun to drive mostly thanks to their revolutionary SkyActiv-G engine technology. Mazda isn’t resting on its laurels, though, and is preparing a whole new generation of SkyActiv-X powerplants. These new engines will be able to use extremely lean fuel mixtures like the homogeneous-charge compression-ignition engines.
Equipped as an option on the Gran Sport 455, only 400 of the GSX Stage 1 packages were sold in 1970. The package boosted the performance of the lightweight 455 engine to 360 hp. That isn’t too impressive until you hear about the GSX Stage 1’s 510 lb-ft of torque. That was the highest torque output of any American production performance car until the introduction of the Series 2 V10 Dodge Viper in 2003.
One thing that is consistent is the 2.0L V8 engine. On top of having an incredibly small displacement for a V8, the engine features four chain-driven camshafts, a SPICA fuel injection system, 16 spark plugs, and has a rev-limit of 10,000 rpm. The unique powerplant produces 230 hp in the road ready editions and 270 hp in race units. Leave it to Alfa Romeo to find an interesting way to deliver power to the ground.
The 2019 Audi A3 Sportback e-tron won’t bring any substantial changes since the all-new model is likely to arrive in 2020. Regardless, the stylish and luxurious plug-in hybrid should still be one of the best hatchbacks 2019 is bringing our way.