It's exactly the same under the distance selling regulations if you ask for a refund. Most other vendors sell cars from dealerships under the Consumer Rights Act, which allows them to Repair, Replace or Refund. You have no legal rights for a replacement, it's entirely at the discretion of the supplier. There are plenty examples here and in FB of people that have had very early issues and I've never heard of anyone getting a replacement car. I would be astounded if other manufacturers offered this either, how would it work if you had waited 3 months for your build slot for a BMW, what would you drive in the meantime? It's easy to find this guidance e.g.
Rejecting a car – your consumer rights | The Car Expert
Personally I had this experience once, 20 years ago I bought my first ever new car, a Ford Puma that was absolutely a dream come true aged 26. Within the first week the master brake cylinder failed going down a big hill, luckily I new of a turn off that was level and with engine braking to escape (no idea what would have happened if not). Towed back to garage and repaired in a couple of days. You don't get any right to have a strop and get a new one. That's probably still my 2nd favourite car after the Tesla.