I've been trawling the net to try to find a suitable bike rack for 3 bikes (9 year old DDs plus DH and mine). Roof mounting is definitely not an option as I'm short! Our cars our both Toyota Avensis with no towbar.
So it looks like it has to be a strap-on job, but then there seem to be issues about whether the lights/numberplate are obscured, and whether the fittings scratch the car... and some look like you still have to lift the bikes quite a long way up. And also not clear if some of them work with children's bikes.
The reviews/advice I've found seem to come too much from fit young men who can easily hoist their alloy racers 6ft in the air. Not small women with sturdy (ie bloody heavy) MTBs.
I need the MN perspective on this ... any pros and cons from your experience would be most appreciated!