BMW engineers are out testing a prototype for a new sports car to replace the Z4. We think it will be called a Z5 to reflect its larger size and positioning compared to the Z4. What we do know for sure is that the car’s platform will underpin Toyota’s new Supra.

Buick boss Duncan Aldred is being coy on whether we’ll see a production version of the recent Avista concept. Based on the same Alpha underpinnings as cars like the Chevrolet Camaro and Cadillac ATS, a production Buick Avista would make a worthy addition to the General Motors Company [NYSE:GM] lineup, especially if its twinned by a model sold at Opel.

It looks like Alfa Romeo won’t be killing its front-wheel-drive Giulietta anytime soon. An updated version of the car has been spotted testing. Unfortunately, we’re still not expecting this one in the United States.

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

2018 BMW Z5 Spy Shots

Buick Won’t Build Avenir... But Doesn’t Rule Out Avista

2017 Alfa Romeo Giulietta Spy Shots

Audi Q5 Vs. Mercedes-Benz GLC: Compare Cars

Audi Q1 Still Coming, Will Share Underpinnings With Next-Gen A1: Report

Carlos Ghosn's Face Shows Nissan's Reaction To 2017 Chevy Bolt EV

GM’s Second Chinese Import To Be Cadillac CT6 Plug-In Hybrid: Report

Hyundai Santa Fe Sport Vs. Kia Sorento: Compare Cars

Spyker Heading To Geneva Motor Show, Possibly With Electric Sports Car

Honda, GM To Build Factory For Fuel Cell Production By 2025

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