A few years back I gave Glock folding shovels as xmas presents for family. Of course I have one in my Jeep.
I have used it on occasion but not for snow. But it's a darn good tool. Even has a saw in the handle for cutting limbs and roots.

When I'm digging my Jeep out of a snowdrift it's always in the driveway at home and I use several of the tools in the garage so I'm not using my "car shovel." (broom, large plastic snow shovel, various ice scrapers) If things are getting that bad at work I'm on the road headed home. I'd rather be snowed in at home than at work.

In the distant past I've had my car snowed in at the airport and found a genuine metal shovel with wooden handle of a scoop style to be quite effective. Strong enough to deal with ice and long enough to reach a ways under the car.