I’ve got a Weber Q100/Baby-Q, and carried it around for several years in the toolbox I carry on the front bumper. Due to its height, I always had to take the lid off the grill and stow them side-by-side in order to get the toolbox lid closed. So, the grill took up twice as much space in the toolbox as it should have.
I bought this
Coleman Fold N Go Grill about a year ago, and so far I like it. It’s just big enough to cook a couple of hamburgers, steaks, or chops, which is what I’m typically grilling. It could easily handle 3, and maybe 4 if needed. You can find it cheaper than Amazon has it for right now. I paid about $65.
It’s small, not very tall, and fits in the space I have for it very well. I haven’t tried this yet, but I think you could set a frying pan on it also.
:):)