Lol WHAT? I guess it depends where your MDP is but it's essentially just adding a branch circuit. Most use 60s (48 amps) so #6, I think the new Ford charger can pull 80 so need a 100amp circuit but still. 4k?
If he only has 100 amp power to the house I can see that being the cost to swap to 200 amp service.
Most, but not all, ev home chargers use a 32 amp 240 plug. the nema 14-50r outlet but are derated to 40 amp breaker with #8 wire. I have seen quotes for 1,500-2,000 to add just the 40 amp outlet. $120 worth of supplies and an hour can get it done for an easy job. 3-4 hours on a hard job.