I can recommend the VW e-UP!s from 2013-2016ish. They have very little tech in them but are relatively modern. You can also quite easily tap into the control systems (climate etc) to remote control it with your own hardware: https://docs.openvehicles.com/en/latest/components/vehicle_v...
They are also super fun to drive and, although they have small batteries, the can charge at 40-50kWh, which translates to 10 minutes to ~85% full. We have used a eUP 2013 model to travel across europe (~900km) in two days, many times! One charge last between one and two hours, depending on speed and weather. We usually cruse at about 90km/h, and the car is basically sipping electrons! The newer model have double the range, but I have not owned or testet them, but might be a decent compromise for longer travels.