For longer drives and the ability to securely lock your bikes in place, a rear hitch-mounted rack could be a solid choice, especially for the taller Tiguan. It's convenient and keeps your bikes accessible. Plus, it's versatile and should work with both your Golf and Tiguan. When it comes to choosing the best option, it really depends on your budget and preferences. Thule and Yakima are popular brands known for quality racks. But remember, if you're hitting the road frequently, it might be worth looking into cycling insurance. It provides peace of mind for any unexpected mishaps.