Celtic Speed, Scotland's leading sportscar team, clinched the Porsche Carrera Cup Pro-Am2 Championship after a nailbiting finale at Silverstone.

While Kirkcaldy 24-year-old Rory Butcher finished second in the Porsche Carrera Cup Pro-Am1 Championship in his firsts season racing in sportscars, it was Edinburgh team-mate George Brewster who had most to celebrate.

Driving his J&E Shepherd-backed Porsche 911 GT3 Cup car, Brewster won the opening Pro-Am2 race at Silverstone and started the season finale knowing he need only finish fifth to lift the title.

Drama though unfolded immediately. On the first lap of the scheduled 28 on the 1.6-mile Silverstone National circuit, Brewster's car was rammed as he turned into a right-hand bend.

"I made a good start from pole position, then as I turned into the corner Richard Denny outbraked himself and ploughed into my rear right-hand wheel and sent me spinning," Brewster explained.

"The impact smashed the wheel and punctured the tyre, but somehow I managed to limp the car back to the pits where the Celtic Speed crew did a fantastic job changing it so quickly and getting me back out.

"Then midway through the race, as I battled to fight my way back through the field, I spun again when I hit fluid which another car had dumped at Copse. Thankfully I managed to get the car going again.

"It certainly wasn't the straightforward race I'd hoped for to clinch the title," Brewster, who posted fastest laps in both races, continued.

"But between us we managed to pull it off. It's a great result personally — it's my first Porsche title — and fantastic for Celtic Speed."

Butcher, meanwhile, sealed his second-place in the highly competitive Pro-Am1 class when he finished second in the day's opening race. But like Brewster, his final race of the season proved difficult.

"Race one was pretty much perfect," Butcher, backed by Fife companies Production Glass Fibre, Harley Hepburn accountants, Intrafusion web design, McDonald Engineers, First Post, and Thomson Cooper Accountants, explained.

"After sealing second place in the championship we decided to go a bit more aggressive for the final race.

"Everything was going really well and I was sitting second in class and seventh overall — having got passed established Porsche racers Stephen Jelly and Sam Tordoff — when I hit Euan Hankey.

"It was just the slightest nudge and there was no damage, but it unsettled both cars and we spun.

"Annoyingly, Hankey's car them rolled back into me and the secondary impact burst the radiator on my car. That was my race, and season, over, and I watched the rest of the race unfold from behind a tyre wall."

But Butcher was quick to reflect on what has been an impressive first season driving the Celtic Speed Porsche.

"We've been really strong this year, and it's been a fantastic learning curve for me," Butcher, who finished behind the vastly more experienced Lithuanian, Jonas Gelzinis, in the title race, continued.

"We did well to push Gelzinis as hard as we did, and to finish so close behind him is a good, solid result which gives me a lot of hope for next season.

"And again, the guys at Celtic Speed have been an inspiration. There's no way I could have done this without them, and the help of team boss Tommy Dreelan."

And Dreelan was quick to heap praise on both his drivers.

"Both Rory and George have been fantastic this season," the Aberdeen-based team boss said, "and to end the season with one title, and a runners-up spo