A YouTuber picked up a 2015 Tesla Model S – originally stickered at over $140,000, loaded with every option including the $10,000 Ludicrous upgrade – for $10,300. Then the front drive motor died, and Tesla wanted $5,500 to replace the whole unit. “The failure was with the front drive unit encoder sensor. Because the B-Class used the same motor and the same encoder sensor, the part is stocked at Mercedes dealerships as a serviceable item. The front motor was back online, and the Ludicrous-spec Model S was behaving like a Ludicrous-spec Model S again.