70's VW's were indeed austere. I had a Varient...rubber mats inside and of course no heater fan...warm air came via the engine and ram effect. Nice an toasty but you had to wait for it to warm up in the morning. Charming with very hard seats but I would not want another. 'Ingenious' screenwasher using the pressure of the air in the spare wheel in the front compartment to drive the spray. Happy days I was 35 years younger then.
The low point was the '68 1200A Beetles. From memory the list of things missing was very, very long.
Reserve tap instead of a fuel gauge
Single speed wipers
Steering wheel with horn push button instead of chrome ring/bar
And you won't be needing that nice badge in the middle either
Moulded rubber "carpets"
Delete rear ash trays
Delete lining trims in rear luggage space. Including the ones that cover the rear arches.
Delete trims strips from waist line and running boards
Replace chrome front indicator pods with painted ones
Delete bonnet trim and badge.
Delete rear badge
Use '67 model year rear lights
Use '67 model year bumpers
Without over riders. Obviously.
Use '67 dashboard switch knobs
Delete passenger sun visor
Delete front door pouches
Delete internal door pulls and replace with earlier versions
You know those improved ventilation controls we've put on the '68 cars? Well you can't have them. Peasant.
Use earlier bonnet handle.
Use early engine deck cover
Delete virtually all headlining and pillar trimming bar one small square directly above the occupants heads. Choose your colour wisely because you get to see a lot of it from inside.
Delete passenger grab handle
Delete rear passenger assist straps
Delete the horn grille that isn't used
Delete under bonnet liner and wiring cover and replace with some folded up cardboard.
Someone with a better memory might suggest otherwise but I am sure this model year kept the single circuit brakes when the proper cars had gone onto dual circuit
I think the '68 car wins as the worst because all others had gone to 12 volt electrics whereas these sorry hounds kept the 6V candles.
It makes me smile that our poverty spec Vectra dog kennel has air con, electric windows and cruise control.