Opel engineers have been spotted testing the company’s next-generation Insignia sedan. There’s a lot riding on this car as it will serve as the next Buick Regal here in the United States as well as the next Holden Commodore in Australia and New Zealand. Our latest spy shots are the most revealing yet.

BMW’s M4 will spawn a race car designed for FIA GT4 competition. BMW’s motorsport department hopes to have the car ready in time for the 2018 motorsport season.

For those looking to buy a 2017 Chevrolet Corvette, we’ve put together a comparison guide pitting the Grand Sport against the Z06. Spoiler alert: we’d go with the Grand Sport.

You'll find all of these stories and more in today's car news, right here at Motor Authority.

2017 Opel Insignia spy shots

BMW M4 GT4 to go racing in 2018

Shopping for a new Corvette? Here's why you should get the Grand Sport

Hyundai Genesis vs. Cadillac CTS: Compare Cars

2017 Infiniti Q60 to start from $39,855

2017 Kia Niro preview

Next Mercedes-AMG CLA45 could have 400 horsepower

Nissan sells a car exclusively via Twitter

Lotus Elise Race 250 is the fastest Elise yet

Just how 'green' is a Ford Super Duty truck?