Inquiry about 2-seater battery bumper car

I am looking to purchase 4-8 professional 2-seater battery bumper cars for indoor commercial use in the Netherlands. I need detailed specifications and a quotation addressing the following points: Technical aspects, including voltage (48V models suitable for adults), weight, load capacity, speed, motor power, and battery type. Battery runtime, charging time, spare battery availability, and lifespan. Functionality features such as forward/reverse driving, brake pedal, rotation function, remote control, and emergency stop. Safety certifications (like CE for Europe), features, and frame materials. Customization options for branding, with cost details. Pricing per unit, shipping costs to the Netherlands, delivery time, and payment terms. Warranty period, spare parts supply, and technical support availability. Please provide this information to help me compare suppliers.