Before embarking on a winter road trip, inspect your vehicle thoroughly. Check the battery, tyres, brakes, and essential fluids like engine oil and coolant. Ensure your tyres have adequate tread depth and are properly inflated, as cold weather can reduce tyre pressure. If travelling through snowy regions, consider installing winter tyres for better traction. Replace worn windshield wipers and test all lights and defrosters to improve visibility during harsh weather conditions.