306's design dates back to the early Nineties, so the fascia design and choice of materials doesn't compare well to today's cars, but everything is logically laid out and easy to find. Driver's seat is comfy, but taller drivers need more headroom (especially with a sunroof fitted).
Rear legroom is adequate, as is headroom, but tall passengers are never quite at ease on a long trip. Seats are reasonably comfy (more adjustable on latter cars) and the ride quality is still good, even when fully laden. Considerable road and engine noise at speed. The hood is insulated and has a heated glass rear screen.