One of these was my first car!
They have what is know as a "Grey Motor", a 138 Cubic Inch Inline-Six, mated to a 3-speed manual gearbox and a column-shift (Three on the Tree!)
They seated Six Adults, with Bench seats front and back, and a huge boot to boot! :)
I had an AWFUL lot of fun in mine before I rolled it into a ditch and lost interest in it. This is a very nice example, most of them have rusted away now!