The unique Knockhill track in Scotland is the spectacular setting for rounds 15 and 16 of the Porsche Carrera Cup GB over the weekend of 2/3 September. This could prove to be one of the most important weekends of the season as the championship title heads into the final six races. If Damien Faulkner (Team Parker with SAS) has another good weekend, he will take another major step towards retaining his title. Meanwhile, his key rivals Tim Harvey (Motorbase Performance) and Danny Watts (Team IRWIN with Red Line) really need the Irish ace to hit trouble to keep their hopes of the crown alive.However, Faulkner is not a driver who makes many mistakes, and with a 40-point advantage, he really does have the upperhand right now. If he keeps on finishing in the top four or five, Faulkner will take the big prize.Harvey, meanwhile, suffered a body blow to his title bid last time out at Snetterton. A clash with VIP racer Rob Huff in the opening race and then an electrical problem in the second race left him with no points and at a stroke he went from being seven points down on Faulkner to being 40 points adrift. Harvey has vowed to keep fighting and can only go all out for race wins and see what happens.The same applies to Watts, who has taken over the car in which Richard Westbrook started the season. Having missed two weekends, Watts was always going to struggle to rival Faulkner, but he's now won his last eight races and lies just nine points adrift of Harvey. The former F3 racer will surely be a pacesetter once more.Another driver making a fine impression this season is Richard Williams (IN2RACING) and he's now well-established at the head of the chasing pack, while Michael Caine (Motorbase Performance) had his best weekend of the season last time out at Snetterton. In both races he led the chase of Watts and is now aiming to maintain that form at Knockhill. Also running well in the pro category after a troubled start to the season is Jason Templeman (Team Parker with SAS).The new pro-am category has delivered some great racing within the overall race and it is young Phil Quaife (Motorbase Performance) who has a clear points' lead with six races to run. His 33-point advantage should be enough to claim the crown, but that won’t stop Phil battling hard for overall results as well and he is also chasing Williams for fourth place in the overall standings.Generally leading the chase of Quaife is Sam Edwards (Team Parker Racing), who is having an excellent season in pro-am and took his second category victory at Snetterton. However, David Ashburn (Trackspeed), Nigel Rice (Red Line Racing), Mike Richards (IN2RACING) and Andy Purdie (RH Motorsport with Paragon) are all capable of claiming pro-am podiums. Then there is VIP racer Colin McRae, who will give the local fans plenty to cheer about as he races in the Vertu-backed car entered by Porsche Cars GB. He's already raced the 997-model Porsche 911GT3 Cup car in the Porsche Michelin Supercup this season and is sure to go very well at his tome track.Meanwhile, at the head of the action, Faulkner can't win the title this weekend, but he can take another big step towards the crown. Harvey and Watts, of course, have other ideas.