General Motors was gearing up to reveal an all-new electric vehicle next month at the 2020 Consumer Electric Show in Las Vegas, but MotorTrend reports these plans have been halted thanks to the lengthy United Automobile Workers union.

"We had a plan to go to CES and frankly we can't go to CES without putting our best foot forward and we could not get the models done that we wanted to get done with the strike, frankly," GM spokesman Tony Cervone explained to MotorTrend. "We had a plan, we worked like hell." Showcasing a new EV that isn't ready at a technology show would have been a disaster. "We want to do it right because we've got a very powerful story to tell," GM's CEO Mary Barra said.

What is this mystery new EV General Motors is plotting? Barra didn't provide any specific details but said the new vehicle focuses on two key areas GM will focus on in the future: electric vehicles and autonomous technology.

Initially, it seemed likely to be a new autonomous vehicle from GM and Cruise. GM has been developing the Cruise AV, a fully autonomous car based on the Chevrolet Bolt with no wheels or steering wheel that will be used as part of a new driverless ride-hailing service. GM originally planned to launch the robot taxi fleet by the end of 2019 but the automaker has realized this deadline isn't realistic. Barra refused to offer a new timeframe while GM continues to improve the technology. "We see a line of sight but we're not going to put another date out there," he said.

However, MotorTrend has received an invitation from Cruise for an event later in January, which suggests a new version of the robotaxi, which has no wheels or steering wheel, will debut next month. Instead, the car that was originally going to be unveiled at CES could be Cadillac's new electric crossover with Super Cruise semi-autonomous highway driving technology, which was previewed in design renderings at this year's Detroit Auto Show showing its sharp styling.

Details are still scarce as the electric crossover still doesn't even have a name. According to Barra, GM's new EV will be shown in the first half of 2020, likely after the all-new 2021 Cadillac Escalade debuts in February.