I see that the Plus Six & Plus Four have disclaimers in their handbooks
Quote
Obtain instructions from a competent source on all aspects of the operation of this high performance vehicle. • Understand that this vehicle is not fitted with airbags or electronic stability control systems but is fitted with an Anti-Lock Braking System (ABS). • Observe the warnings and maintenance requirements contained within this Owner’s Manual. • Obtain qualified training in safe and proper driving techniques, applicable to high performance vehicles. • Know your own limits and skill level. Driving safely within your own limits may help you to avoid an accident. • Take particular care when driving on wet or slippery surfaces.