A Californian rider has been awarded a $US21.5m (about $A31.5m) payout for injuries suffered when a Kia Optima illegally left the carpool lane and jettisoned his bike across three lanes into a truck. The fiery crash in February 2018 left rider Matthew Rada with “catastrophic” injuries that ended his career as a graphic artist. GoPro video from another rider was used as evidence in the LA Court. The verdict against the driver and his employer may yet be appealed. However, it dwarfs a payout earlier this year to a North Carolina Harley rider. He was awarded $US4m (almost $A6m) after a crash with a driver who failed to yield right-of-way. The 29-year-old rider was travelling about 15mph (about 24km/h) when he was struck by a vehicle that accelerated away from a stop sign without seeing the motorcycle. America is renowned for its excessive compensation payouts, mainly due to high medical costs. According to a study by US Jury Verdict Research, the average motorcycle accident verdict is about $A560,000 and the median verdict award just over $US70,000. Crash payout In Australia, payouts for motor vehicle crashes are a lot less and rarely over $1m. Compensation can be determined by a number of factors. They include physical and mental injuries, the rider’s age, hospital expenses, on-going medical costs, pain and suffering, motorcycle damage and loss of earnings.See alsoMotorbike newsNewsMotorcycles ignored as traffic solution Big payouts are rare in Australia and vary from state to state based on third-party insurance regulations. Riders should ensure they have adequate insurance cover and seek professional legal aid after a crash. Click here for tips on what to do after a minor crash.