2:10 PM PT -- Dr. Sierra's rep has released a statement saying the reality star was "completely unaware of anyone (other than the new owner) driving the vehicle."
The statement continues ... "Through filming for Real Housewives of Miami, press engagements, and crazy travel schedules, the paperwork has not been executed 100% for the sale of the Porsche. But [Dr. Sierra] is not responsible for the unfortunate occurrence that took place with Ms. Lohan and the pedestrian. “
4:08 PM PT -- As for Domingo ... his rep tells TMZ, the painter is aware of the allegations against Lindsay Lohan and doesn't give a crap. According to the rep, Domingo willingly gives Lindsay his car whenever she needs it. In fact, he permanently leaves a pair of keys for her in NYC.
One of the ladies from "Real Housewives of Miami" did a really stupid thing ... she sold the car that Lindsay Lohan was driving this morning when she allegedly struck a pedestrian ... but the registration hasn't been changed, and now she could be on the hook if the alleged victim sues.
Here's the deal -- sources tell TMZ, the Porsche Cayenne Lindsay was driving this morning when she allegedly hit a pedestrian belongs to an artist named Domingo Zapata, a close friend of Lindsay's. We're told ... roughly 2 months ago Domingo bought the car from Karent Sierra, the "Real Housewives of Miami" star who is also Domingo's dentist. But the registration hasn't been changed.
Under New York law, if the owner of a car gives express or even implied permission for someone to drive and that person gets in an accident that causes property damage or injury, the victims can go after the owner.
As for whether Karent gave express or implied permission ... that's ultimately up to a judge, but if she handed Domingo the keys without telling him no one else could drive it ... she could be screwed.