Citroen 2CV,
Brakes - felt like wooden blocks rubbing on the wheel rims
Accelerator - the car is an A-reg, and was around 34bhp when brand new! planting my foot literally did nothing.
Gear Change - It doesn't have a gear stick, just some strange lever that you pull and twist poking from the dash. Selecting gears reminded me of a lucky dip (luckily there is a picture on the dashboard indicating the general area you might find the gear you want).
Steering - had to anticipate corners and steer well before them to counter the general tyre, chassis and suspension flex.
Body roll - going round even the mellowest of corners had me fighting against falling out of the seat.
Weather proofing - it was raining, I constantly got dripped on through the canvas roof (with multiple repair patches might I add)
Noise - This particular car had no silencer on the exhaust, and the pipe poked out from the engine bay so was extremely loud in the passenger compartment.
Indicators - Didn't cancel themselves
Lights - worse than a modern car with 1 headlight working in sidelight setting.
Creature comforts - heater seemingly did nothing, no radio. Windows open up and outwards like a flap, going round a corner would occasionally see that the windows opened themselves and flapped wildly in the wind.
Windscreen wipers - on or off. 'on' was barely fast enough to clear light drizzle.
But I'm told by the owner "it's very economical"