British GT: what you need to know
For 28 years the Intelligent Money British GT Championship has formed an intrinsic part of the UK’s national motorsport fabric. But, having undergone a number of changes throughout those that quarter-century, it’s difficult to envisage an era more competitive than the current GT3/4 format.
THE BASICS // BRITISH GT IN A NUTSHELL
REIGNING 2020 CHAMPIONS
GT3 Drivers’: Sandy Mitchell and Rob Collard, Barwell Motorsport (Lamborghini)
GT3 Pro/Am: Ian Loggie and Yelmer Buurman, RAM Racing (Mercedes-AMG)
GT3 Silver Cup: Sandy Mitchell and Rob Collard, Barwell Motorsport (Lamborghini)
GT3 Teams’: Barwell Motorsport (Lamborghini)
GT4 Drivers’: Jamie Caroline and Daniel Vaughan, TF Sport (Aston Martin)
GT4 Pro/Am: Mia Flewitt and Euan Hankey, Balfe Motorsport (McLaren)
GT4 Silver Cup: Jamie Caroline and Daniel Vaughan, TF Sport (Aston Martin)
GT4 Teams’: TF Sport (Aston Martin)
2020 AWARD WINNERS
Sunoco Fastest Driver of the Year: Phil Keen (GT3) and Jamie Caroline (GT4)
Allan Simonsen Award: Sandy Mitchell
• GT3 and GT4
• Cars not homologated as either GT3 or GT4 can run as Invitational entries at British GT’s discretion
• GTC remains a legal but currently unused specification
• Rules include performance balancing and handicap weights
• Pro/Am driver crews are the bedrock of British GT. These consist of professional drivers graded as Silver (or higher) and amateur/gentleman drivers graded as Bronze.
• In 2021 driver line-ups comprising two FIA Silver-graded drivers will no longer be permitted to race in British GT3. Instead, a Silver-Am class – first trialled in 2016 – will be added to the existing Pro-Am and Am-Am classifications.
Variables within the FIA’s grading criteria mean not all Silver drivers automatically qualify for British GT’s Silver-Am classification. Instead, the Silver element will typically comprise promising but less experienced young drivers, GT4 graduates or those likely to contribute some budget when paired with a Bronze-graded amateur.
• Silver and Gold/Platinum driver pairings are not permitted.
2021 CHAMPIONSHIP CLASSIFICATIONS
GT3: Overall Drivers’, Pro/Am, Silver-Am and Teams'
GT4: Overall Drivers’, Pro/Am, Silver Cup and Teams'
Races lasting two hours or more are worth an additional 50% points
• 1 hour races: 1st 25, 2nd 18, 3rd 15, 4th 12, 5th 10, 6th 8, 7th 6 8th 4, 9th 2, 10th 1
• 2-3 hour races: 1st 37.5, 2nd 27, 3rd 22.5, 4th 18, 5th 15, 6th 12, 7th 9, 8th 6, 9th 3, 10th 1.5
Sunoco Fastest Race Lap of the Weekend Award
Awarded to both the GT3 and GT4 driver who sets their class’ fastest race lap. Weekends comprising two races will still only reward the overall fastest time in both classes. The driver with most fastest laps at the end of the year will be crowned.
TYPICAL RACE WEEKEND FORMAT
British GT race weekends typically run Saturday-Sunday.
60mins Free Practice 1
60mins Free Practice 2
10mins GT3 Qualifying 1 (Am drivers must contest this session)
10mins GT3 Qualifying 2
10mins GT4 Qualifying 1 (Am drivers must contest this session)
10mins GT4 Qualifying 2
60/120/180mins Race 1
60mins Race 2 (Oulton Park and Snetterton only)
PITSTOP AND DRIVE-TIME REGULATIONS
In races lasting one hour the top three finishers in each class from the previous round must respectively serve an additional 10, 7 and 5-second Pitstop Success Penalty during their mandatory pitstop. During races lasting two hours or longer the top three finishers in each class from the previous round must respectively serve an additional 20, 15 and 10-second Pitstop Success Penalty during their mandatory pitstop.
Competitors must make at least one pitstop during all British GT races. During the Silverstone 500, the season's only three-hour race, competitors must make three mandatory pitstops.
All cars are subject to a minimum pitstop time. This starts as the car crosses the pit-in line and ends as it triggers the timing beam at pit-out. Anyone found to be under this time must serve a stop/go penalty to the same value as they were under time (eg 10secs too fast in the pits equals a 10secs stop/go penalty).
Minimum drive-time regulations vary per event. One-hour races tend to have separate windows for GT3 (typically minutes 22-32) and GT4 (typically minutes 28-38), whereas two-hour races rely on minimum stint lengths rather than windows. These can be adjusted but typically GT3's starting driver must complete at least 62 minutes, whereas GT4's starting driver must complete at least 58 minutes.
Failure to adhere to these time scales will result in a stop/go penalty or additional time added post-race.
There are always four qualifying segments determined by driver grading and class…
1x GT3 Qualifying 1 (Am drivers must contest this session)
1x GT3 Qualifying 2
1x GT4 Qualifying 1 (Am drivers must contest this session)
1x GT4 Qualifying 2
…but their significance depends on the number of races being held that weekend.
2x one-hour races: each car’s Am and Pro driver’s best individual time will determine the grid for Race 1 and Race 2, respectively.
1x 2 or 3-hour races: each of the Am and Pro’s fastest lap times are combined to determine the starting order. The lowest combined time takes pole for each class. The Am will start the Race.
Each of the four sessions last 10 minutes.
Classes are split, meaning GT3 and GT4 cars do not run at the same time.
Drivers must complete two timed laps (not including in and out laps).
2021 Published British GT Regulations