Capacity classes: To qualify for inclusion in the class categories listed below, an engine must have been housed in a passenger car that was on sale in more than one country up to June 2019.

Sub 150PS • 150PS to 250PS • 250PS to 350PS • 350PS to 450PS • 450PS to 550PS • 550PS to 650PS • Above 650PS

Best Hybrid Powertrain: To qualify for inclusion in this category, an engine must have been housed in a passenger car that was on sale in more than one country up to June 2019, have been designed with fuel economy as a top priority, and employ intelligent e-powertrain technologies and hybrid subsystems to reduce emissions.

Best Performance Engine: To qualify for inclusion in this category, an engine must have been housed in a passenger car that was on sale in more than one country up to June 2019, and have been designed specifically for a performance-orientated car, or be installed in a vehicle created for sporting and dynamic fun.

Best New Engine: To qualify for inclusion in this category, an all-new engine must have been launched after June 2018 and have been housed in a passenger car application that was on sale in more than one country up to June 2019.

Best Electric Powertrain: To qualify for inclusion in this category, an all-electric powertrain must have been housed in a passenger car that was on sale in more than one country up to June 2019. The Electric Powertrain category is a grouping specifically for 100% battery electric vehicles, showcasing the advances in technology for this type of powertrain as it grows in popularity across the world.

International Engine + Powertrain of the Year Award: The winning engines from the seven class categories are shortlisted for the overall International Engine + Powertrain of the Year Award.

In every category, the panellists judged each shortlisted engine using their subjective driving impressions and technical knowledge, taking into account characteristics such as fuel economy, smoothness, performance, power delivery, noise and overall driveability. The jurors each had 25 points to award to their five favourite engines in each category. A maximum of 15 points could be allocated to an engine, and the minimum was 1 point.

All performance and fuel economy figures referenced in this journal are manufacturers’ data.

Only the results of the top six engines in each category have been listed. Full results are available upon request by emailing enginetech@ukimediaevents.com.