It might work, but the constant vibration from the car triggering it would probably reduce the battery life considerably.
I have one of their vibration sensors along with 121 other YoLink devices. I use the vibration sensor on my stand-alone natural gas generator. The generator does a 20 minute test run every two weeks, which also keeps its battery charged. The vibration sensor notifies me when the generator starts. I don't always hear the generator or if I'm away from home the vibration sensor lets me know it started the run. Works great every time.