http://www.prodriftseries.com/ireland/rules-regs/
under veihicle specification its says on the forth point
Vehicle Specification
• FF drive-train vehicles are not allowed.
• All vehicles must be rear wheel drive (4WD to RDW conversions are permitted).
• No fluid leaks of any kind will be tolerated.
• Each car must maintain the OEM uni-body structure, Tube Frame/space frame Chassis are not allowed in any Prodrift Ireland Competition. Tube Frame extensions are only permitted once they are fitted in front of the most forward or rear suspension points and must not have forward facing sharp edges. Any design outside of the parameters stated must be inspected and approved by Prodrift technical scrutineers before competition. Whose decision shall be Final.• Vehicles that do not meet the above criteria must be approved by Prodrift Ireland.
• Open roof vehicles are permitted but shall use arm restraints instead of a window or window net and should have “ X “ intrusion bars in the roof.