Securing EV passenger cars on a double-deck car carrier semi-trailer demands extra attention beyond standard ICE tie-down practices, because the heavy underfloor battery pack changes both weight distribution and chassis geometry. Start by staging each EV at the correct position on the deck-front-axle heavy EVs belong forward on the lower deck, while rear-motor models can sit slightly aft-so the axle load stays within the trailer's rated capacity. Always use the manufacturer-approved tie-down points on the subframe; never hook straps around suspension arms, control arms, or battery tray edges, since the high gross vehicle weight can bend or crack these components under transit tension.
Drive each vehicle up the ramp slowly, keeping the nose centered to avoid scraping the low battery skid plate; many EVs ride 20–40 mm lower than comparable sedans, so approach angles matter more than they used to. Once parked, set the car in P and engage the electronic
parking brake, then confirm the vehicle is powered off and the climate control is disabled before walking away-some EVs will wake mid-transit from stray Bluetooth signals and drain the 12 V battery.
Use four-point ratchet straps per vehicle, two at the front and two at the rear, pulling diagonal to the direction of travel rather than straight sideways. Tension each strap to roughly 250–300 daN, then do a second pass after the first 20 kilometers on the road; new straps stretch and settle. For EVs with air suspension, switch the vehicle to the lowest transport height if the manual allows, and verify that the battery guard has at least 15 cm of clearance from the deck frame. Finish with a quick walk-around: confirm no strap crosses a sensor, camera, or charging port, and that the upper deck clearance over each EV roof is at least 20 cm. Done right, every EV arrives at the dealer lot with full battery state, undamaged sensors, and zero warranty claims tied to transit.
