Public road go kart, Bessalov Inc, Japan

We want a kart in this form but with a gas engine and these specification.
・Maximum speed: 60km/h (Road Traffic Act)
・Rated power: 0.6kW or less
・Length: 2.5m or less
・Width: 1.3m or less
・Height: 2.0m or less
Other revised equipment:
・Seat belts now mandatory
・Taillights now mandatory
・Fenders now mandatory
・Headrests now mandatory
・Shock-absorbing steering structures now mandatory.