Some seats have a reclining backrest.
You can fit a secure box in the footwell or on the bulkhead under the bonnet or over the rear axle.
The radio is a waste of space - I've never used mine in three years.
You need to try a Plus 8 or Roadster. Both are significantly wider than your test cars and much better planted on the road.
In the end it may not be the car for you. They don't suit everybody.
