Horizon Special Car Themes are groupings available when creating a Blueprint. The High Rollers theme has 54 cars in total ranging from D to S2 class; only cars that are currently within the eligible event PI restriction will appear as options to use in the event. You can back out and upgrade a preferred car and reenter the event with it.
1968 Alfa Romeo 33 Stradale
1965 Alfa Romeo Giulia TZ2
1934 Alfa Romeo P3
1958 Aston Martin DBR1
1939 Auto Union Type D
1931 Bentley 4-1/2 Liter Supercharged
2018 Bugatti Chiron
2011 Bugatti Veyron Super Sport
1926 Bugatti Type 35 C
2014 Ferrari FXX K
2005 Ferrari FXX
2002 Ferrari Enzo Ferrari
1995 Ferrari F50
1989 Ferrari F40 Competizione
1984 Ferrari 288 GTO
1967 Ferrari #24 Ferrari Spa 330 P4
1963 Ferrari 250LM
1962 Ferrari 250 GTO
1962 Ferrari 250 GT Berlinetta Lusso
1957 Ferrari 250 Testa Rossa
1957 Ferrari 250 California
1948 Ferrari 166MM Barchetta
1966 Ford #2 GT40 MkII (Le Mans)
1964 Ford GT40 Mk I
1964 Jaguar Lightweight E-Type
1956 Jaguar D-Type
1953 Jaguar C-Type
2017 Koenigsegg Agera RS
2015 Koenigsegg One:1
2016 Lamborghini Centenario LP 770-4
2013 Lamborghini Veneno
2012 Lamborghini Aventador J
2011 Lamborghini Sesto Elemento
2019 LEGO Speed Champions Bugatti Chiron
1987 LEGO Speed Champions Ferrari F40 Competizione
2008 Maserati MC12 Versione Corsa
1961 Maserati Tipo 61 Birdcage
1957 Maserati 300 S
1953 Maserati A6GCS/53 PininFarina Berlinetta
1939 Maserati 8CTF
2019 McLaren Speedtail
1997 McLaren F1 GT
1993 McLaren F1
1998 Mercedes-Benz AMG CLK GTR
1955 Mercedes-Benz 300 SLR
1939 Mercedes-Benz W154
1929 Mercedes-Benz Super Sport Kurz Barker Roadster
2009 Pagani Zonda Cinque Roadster
1998 Porsche 911 GT1 Strassenversion
1971 Porsche #23 917/20
2019 Rimac C_Two
1965 Shelby Cobra 427 S/C
1965 Shelby Cobra Daytona Coupe
2016 W Motors Lykan HyperSport