Passenger & boot space
How it copes with people and clutter
There's lots of space up front for even very tall people to get comfortable, but despite the Mustang Convertible's sizeable proportions, the two rear seats are a bit cramped. Children and particularly short grown-ups will be fine on longer journeys, but average-sized adults will find their knees brushing the seat backs. At least the long doors mean access is a little easier than it is in the Mercedes C-Class Cabriolet. The Audi A5 Cabriolet is a more accommodating four-seater than either rival, though.
Surprisingly, the Mustang Convertible gets Isofix mounts in the rear, so two child seats will be secure, although, once you’ve seen the Mustang’s Euro NCAP safety scores (which we discuss on our costs and verdict page) you might think twice about putting your loved ones back there.