The presenter crashed a £250k 1990 Lamborghini Diablo when shooting the BBC show in Yorkshire.
In an Instagram video, he told his fans: “It’s been a mad old day on Top Gear today, you might have seen that I had a bit of a shunt.
“I finally got to drive one of my fantasy childhood cars, the Lamborghini Diablo, but it turns out 30-year-old supercars don’t like torrential rain, who’d have thought?”
He continued: “If you’ve ever owned a Diablo or you’ve driven one you’ll know just as well as me, oh my god, she can be a cruel mistress, she can be a cruel mistress that one.
“That V12 lures you in and suddenly, rawr, it bites you. Fingers crossed we get the car running again because it is an absolute beauty.”
McGuinness then joked: “I’m going to have a cup of tea, a paracetamol and a good old cry.”
His wife Christine also shared a selfie with him, saying he was “absolutely fine” compared to the car. “The ‘lambo got it much more than he did,” she said.
A BBC spokesperson told MailOnline: “During Top Gear filming in north Yorkshire today presenter Paddy McGuinness’s car skidded and left the road, coming to an almost immediate stop.
“Paddy was quickly taken to the production unit base for medical checks and is unhurt. No other vehicles were involved and the police, who had been monitoring filming, were quickly on the scene to assist.
“Safety on Top Gear is always the production team’s priority and the vehicle’s speed at the time was within the road’s limit of 60mph.”
Top Gear and EastEnders resumed filming with social distancing measures in place this month, after previously being postponed because of the coronavirus pandemic.