Hell Yeah Fity!
Those Groms are a lot of FUN never rode one. The go cart track I ride the "Little" bike on the passenger "Right" side is a 125 has a hell of a time keeping up with the Pros riding on those Groms. Amateurs on them really do not give me too much trouble. I use the new style crappy ratcheting cargo straps. I prefer truckers knots on some good 3/8" Burlap. I do use a "TrackSide" brand portable wheel chock for the front wheels. It fits perfectly in the resessed low portion of the floor behind the front seats. The road racers fit easily, even the bigger 250 Aprillia on the driver's side (Left). You should see the DRZ 400 Suzuki in there. If you are real nice I will even show you that photo as well....(you don't really have to be that good).
I do have to walk the bikes in. I used to have a 54 GMC Truck (5 window) that I would ride up in like you Fity, but ever since my van era starting in 1974 I have been forced to shove them in ever since. Nice Posting with ya dude.
SIncerely
Herode.