Hello! Thinking ahead to July 1st and our local Canada Day Parade, I've been recruited by 'Mum-in-law' to drive some of her lady friends, all volunteers at our local hospital, in the parade. Last year they were short of convertibles so, I bought a nice one, an '06, and have volunteered. Now I've been warned that these ladies will want to perch themselves atop the folded roof behind the back seat for the parade. I'm thinking 'bad idea!' ...Anyone got experience (or advice about) attempting this? I'm not sure that the rear seat headrests won't be in the way anyways..