I like the look of these ramps and if I hadn't given up getting under the car, because of age, I would have considered them. The 1000kg load is more than enough for the Mazda 6. If you have two ramps, the load both can take together is 2000kg, well in excess of the 1450 kg. You would need to buy 4 ramps to take the full weight of the car. i.e. one for each wheel, giving a total rating of 4000kg.