I measured the XP per lap of each layout of each track, based on a ten lap race. The amount of XP does seem to scale, but not perfectly - I’m not sure why. It’s still a good rough guide, though. I’m going to try to paste my numbers on this post, but I don’t know how well it will come out…
Autodromo Nazionale Monza Full Circuit 2,500
Autodromo Nazionale Monza Short Circuit 1,100
Autodromo Nazionale Monza Full Circuit Alt 2,200
Bernese Alps Festival Circuit 2,400
Bernese Alps Stadtplatz Circuit 2,000
Bernese Alps Club Circuit 1,800
Bernese Alps Festival Circuit Reverse 2,400
Bernese Alps Stadtplatz Reverse 2,000
Bernese Alps Club Circuit Reverse 1,800
Brands Hatch Grand Prix Circuit 1,600
Brands Hatch Indy Circuit 1,000
Circuit de Catalunya Grand Prix Circuit 2,400
Circuit de Catalunya National Circuit 1,600
Circuit de Catalunya School Circuit 990
Circuit de Spa-Francorchamps Full Circuit 3,200
Circuit of the Americas Grand Prix Circuit 3,000
Circuit of the Americas West Route 2,200
Circuit of the Americas East Route 1,100
Daytona Intl Speedway Sports Car Circuit 2,300
Daytona Intl Speedway Short Circuit 2,000
Daytona Intl Speedway Tri-Oval Circuit 940
Hockenheimring Full Circuit 2,300
Hockenheimring National Circuit 2,000
Hockenheimring Short Circuit 1,400
Indianapolis Motor Speedway Grand Prix Circuit 1,900
Indianapolis Motor Speedway The Brickyard Speedway 1,200
Indianapolis Motor Speedway Grand Prix Circuit - Classic 1,900
Indianapolis Motor Speedway Grand Prix Circuit Alt 2,100
Le Mans Circuit de la Sarthe Full Circuit 5,500
Le Mans Circuit de la Sarthe Bugatti Circuit 2,300
Le Mans Circuit de la Sarthe Old Mulsanne Circuit 5,000
Lime Rock Full Circuit 1,200
Lime Rock West Chicane 1,300
Lime Rock South Chicane 1,200
Lime Rock Full Circuit Alt 1,300
Long Beach Full Circuit 1,900
Long Beach East Route 1,200
Long Beach West Route 540
Mazda Raceway Laguna Seca Full Circuit 2,000
Mount Panorama Circuit Bathurst Circuit 2,800
Nurburgring Full Circuit 12,000
Nurburgring Nordschleife 9,300
Nurburgring GP Circuit 2,700
Prague Full Circuit 2,600
Prague Short 1,400
Prague Full Circuit Reverse 2,600
Prague Short Reverse 1,300
Rio de Janeiro Full Circuit 3,000
Rio de Janeiro National Circuit 2,100
Rio de Janeiro Coast Loop 1,100
Rio de Janeiro Mountain Circuit 900
Rio de Janeiro Mini Circuit 740
Rio de Janeiro Full Circuit Reverse 3,000
Rio de Janeiro National Circuit Reverse 2,100
Rio de Janeiro Coast Loop Reverse 1,100
Rio de Janeiro Mountain Circuit Reverse 930
Rio de Janeiro Mini Circuit Reverse 740
Road America Full Circuit 2,900
Road America East Route 1,400
Road America West Route 1,700
Road America Full Circuit Alt 3,100
Road America West Route Alt 1,900
Road Atlanta Full Circuit 1,900
Road Atlanta Club Circuit 1,300
Sebring International Raceway Full Circuit 2,800
Sebring International Raceway Short Circuit 1,600
Sebring International Raceway Club Circuit 1,400
Silverstone Racing Circuit Grand Prix Circuit 2,800
Silverstone Racing Circuit International Circuit 1,400
Silverstone Racing Circuit National Circuit 1,200
Sonoma Raceway Full Circuit 2,100
Sonoma Raceway Grand Prix Circuit 2,100
Sonoma Raceway Short Circuit 1,700
Test Track Airfield Full Circuit 1,300
Top Gear Full Circuit 1,600
Top Gear East Circuit 770
Top Gear West Circuit 700
Top Gear Outer Loop 1,100
Top Gear East Circuit Reverse 760
Top Gear West Circuit Reverse 690
Top Gear Outer Loop Reverse 1,000
Watkins Glen Full Circuit 2,500
Watkins Glen Short Circuit 1,600
Watkins Glen Full Circuit Alt 2,400
Watkins Glen Short Circuit Alt 1,500
Yas Marina Circuit Full Circuit 3,000
Yas Marina Circuit North Circuit 1,600
Yas Marina Circuit South Circuit 1,400
Yas Marina Circuit North Corkscrew 1,300
Yas Marina Circuit Corkscrew 2,700