I hunted high and low for a saris bones 3 as I wanted to see it before buying, so not online. It seemed like the perfect rack :) but no shops had the 3 bike version in store. In the end I bought a Saris Sentinel 3, half the price and very solid, easy to setup and fits hatchbacks and saloon boots.
After buying the sentinel I turned up at sherwood pines to see 5-6 saris bones 3 on the back of various vehicles and was glad I never found one, they seem massive and hang a long way of the back, pretty ugly, but can’t say how stable they are.
Out of interest the single bike Saris bones have been designed very strangley, the way the bike hangs off them will fill me with dread.
Hope it helps.
Jools