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Published Regulations for the Northampton Motorsport , Caterham and Lotus Seven Club Speed Championship 2024 can be downloaded using the link at the bottom of this page.
You can view the MSUK Yearbook which contains all the general regulations for motor sport here(link is external)
SIMPLE GUIDE TO CLASS STRUCTURE
Classes 1 to 5 are within the Road-Going Specialist Production Car Category. Classes 6 & 7 are within the Modified Specialist Production Car Category
While this guide gives a simplistic view of the classes please refer to the full regulations for the details.
CLASS 1
- This class is designed for any standard Lotus or Caterham 7 and falls within the Motorsport UK rules for Road Car - Specialist Production
- Engine size up to 1600cc,
- Gearbox : 4 or 5 Speed
- Engine Type : Any normally aspirated car engine or the 3 cylinder turbocharged Suzuki 660cc engine as fired to the Caterham 160, 165 and 170 models.
- Tyres : Motorsport UK List 1A
- Power : Up to 130 BHP
- Driver Aids : None
- FHR : Optional
- Windscreen : Standard or Aero
- ROPS : MSA Rollbar + Petty Strut or Full Cage
- Documents : V5, MOT, Road Tax
- Typical Standard Models : Seven 160, Classic, Academy, Roadsport 125, Tracksport 125
CLASS 2
- The class is designed for standard Lotus or Caterham 7 and falls within the Motorsport UK rules for Road Car - Specialist Production.
- Engine Size up to 1800cc
- Gearbox 4,5 or 6 Speed
- Engine Type : Any Car Engine
- Tyres Motorsport UK List 1A
- Power : Up to 155BHP
- Driver Aids : None
- FHR : Optional
- Windscreen : Standard or Aero
- ROPS : MSA Rollbar + Petty Strut or Full Cage
- Documents : V5, MOT, Road Tax
- Typical Standard Models : Roadsport 140, Seven 270, Supersport 140, 310R
CLASS 3
- The class is designed for any standard Lotus or Caterham 7 and falls within the Motorsport UK rules for Road Car Specialist Production.
- Engine Size up to 1800cc
- Gearbox 4,5 or 6 Speed
- Engine Type : Any Car Engine
- Tyres Motorsport UK List 1B
- Power :Up to 155 BHP
- Driver Aids : None
- FHR : Optional
- Windscreen : Standard or Aero
- ROPS : MSA Rollbar + Petty Strut or Full Cage
- Documents : V5, MOT, Road Tax
- Typical Standard Models : Roadsport 140, Seven 270, Supersport 140, 310R
CLASS 4
- The class is designed for any Lotus or Caterham 7 and falls within the Motorsport UK rules for Road Car Specialist Production.
- Engine Size : Unrestricted
- Gearbox 4,5 or 6 Speed non sequential
- Engine Type : Any car derived engine
- Tyres Motorsport UK List 1A, 1B
- Power: Up to 220 BHP
- Driver Aids : None
- FHR : Optional
- Windscreen : Standard or Aero
- ROPS : MSA Rollbar + Petty Strut or Full Cage
- Documents : V5, MOT, Road Tax
- Typical Standard Models : , Seven 360, Seven 420, R300, R400
Class 5
- The class is designed for any Lotus or Caterham 7 and falls within the Motorsport UK rules for Road Car Specialist Production
- Engine Size : Unrestricted
- Engine Type : Unrestricted
- Gearbox : Unrestricted
- Tyres Motorsport UK List 1A,1B
- Power: Unrestricted
- Driver Aids : All Permitted
- FHR : Optional
- Windscreen : Standard or Aero
- ROPS : MSA Rollbar + Petty Strut or Full Cage
- Documents : V5, MOT
- Typical Standard Models : R500, 620R
CLASS 6
- The class is designed for any Lotus or Caterham 7, and falls within the Motorsport UK rules for Modified Specialist Production Cars
- Engine Size : Unrestricted
- Gearbox : Unrestricted
- Engine Type : Unrestricted
- Tyres : Motorsport UK List 1C
- Power : Unrestricted
- Driver Aids : All Permitted
- FHR : Mandatory
- Windscreen : Standard or Aero
- ROPS : MSA Rollbar + Petty Strut or Full Cage
- Documents : V5, MOT
Class 7
- The class is designed for any Lotus or Caterham 7, that doesn't meet the requirements of the other classes.
- Engine Size : Unrestricted
- Gearbox : Unrestricted
- Engine Type : Unrestricted
- Tyres : Unrestricted
- Power : Unrestricted
- Driver Aids : All Permitted
- FHR : Mandatory
- Windscreen : Standard or Aero
- ROPS : MSA Rollbar + Petty Strut or Full Cage
- Documents : V5 or MSA Log Book
2024 CL7C Non-Race (Speed) Standard Championship V4-final signed2.pdf