Join Date: Aug 2017
Location: Downstate Illinois (and sometimes Florida)
I see you're in Germany so I don't know your market options, but I agree with DoninDel's suggestion about a hitch rack. It's what I use for our two bikes. Four bikes on the roof is a lot. The Mopar crossbars should be strong enough. Thule, Yakima, and RockyMounts all make bike carriers that fit the roof crossbars. My favorite hitch rack is a platform rack by Kuat.
Whatever you get, don't go cheap. Safety is too important.
2018 Chrysler Pacifica Limited Billet Silver, AST, 20" wheels (build date 1-25-18)
2014 Jeep Cherokee Latitude V6 FWD Eco Green
Past . . .
2012 Honda Odyssey EX-L, 2003 Mazda MPV, 1997 Odyssey,
1999 Accord, 1994 Accord, 1988 Accord . . .
. . . and others in the 'way back machine!
. . . First new car:
1962 Plymouth Valiant