Group T4
FIA technical specifications for modified side-by-side cross-country vehicles.
Group T4 is a set of technical specifications for modified production cross-country side-by-side vehicles used in off-road Cross-Country Rallying. Governed by the FIA and defined in appendix J, article 286a of its International Sporting Code, these vehicles are modified from production models built in quantities exceeding 250 units per year. They are notable for a minimum weight of 900 kg and the absence of requirements for windscreens or windows, as well as a ban on driving aids like traction control or ABS.
Quick Facts
- Minimum weight
- 900 kg / 1,984 lb
- Production requirement
- Greater than 250 units in a 12-month period
- First introduced
- 1990
- Engine limit
- One engine
- Driving aids prohibited
- Traction control and ABS
Facts from the source article.
History
Group T4 was first introduced in 1990 when the generic Group T, introduced the year before, was divided into four specific categories. Initially, T4 was for cross-country trucks, with no provision for lightweight vehicles until 2019 when two categories of Group T3 were established. In 2020, T3-Prototypes became Group T3, and T3-Series became the Group T4 of today, with Trucks moved to Group T5. The side-by-side T4 vehicles have since competed in FIA Baja Cross Country Rallies, Rally Raids and Marathon Rallies, including in the FIA World Cup for Cross Country Rallies.
Classes
In the FIA World Rally-Raid Championship, Group T4 has no internal sporting classes. The Dakar Rally, however, created its own subcategories for the 2025 edition: SSV1, SSV2, and T4. Vehicles built to the 2021 ASO rules are allowed, while the 2022 ASO rules point to FIA regulations, confirming the FIA’s authority. T4 vehicles can also compete as a standalone class in the FIA African Rally Championship and Middle East Rally Championship, where no other Group T cross-country vehicles are permitted.
More in Fédération Internationale De l'Automobile
Spotted an error? Know more?
Reader corrections go straight into our review queue. Suggest an edit · How this site is sourced