For this year's 10 Best Engines judging process, Judge Schweinsberg is vexed by vibration and flummoxed by figuring out how to disable scheduled charging.
The combustion research that led to Mazda’s 13:1 compression ratio on 87-octane gas goes back about 10 years, long before there was a Skyactiv program.
Audi’s only gasoline V-6 as of the ’13 model year powers the A6 and A7 4-door "coupe," the high-performance S4 sedan and Cabriolet and S5 coupe, as well as the Q5 and Q7 CUVs and the ’13 A8 luxury sedan. It also can be...