Do convertibles get lower gas mileage than regular cars?

A friend of mine claims that the fabric of the convertible top causes drag and lowers gas mileage. Asked by sarge007 56 months ago Similar questions: convertibles lower gas mileage regular cars Business > Financial Planning.

Similar questions: convertibles lower gas mileage regular cars.

When compared to hard tops of the same model, you bet All of the weight that goes towards things like extra reinforcement in the body to make up for that which is lost by not having a roof and the gears/motor for raising lowering the top will make the car heavier. The roof of the car provides a lot of support for the body - if you take a sawzall and cut off the roof of a car and drive it around, the body will start to twist and sag as you drive it around. After a few days, you probably won't be able to open the doors!

The loss of the hard top also breaks up what would have been a smoother path for air to take as it passes over the car. Now, it hits the windshield and can roll around in the seats and create drag. Having the soft top up will help, but it won't be as aerodynamic compared to a model with the normal roof.

Video WIth a smooth edge over the top of the car, the air travels right over it and does not create any turbulance that will cause drag. With a convertible, the air would drop down after passing the windshield and start to roll down on itself and get sucked along with the car.

Your friend is right Many factors go into a car's effect mileage. Streamlining is definitely one of them. Tire pressure is also very important - low tires have higher rolling friction and thus use more fuel.

This is probably 0.25 mpg, but it counts, over time. The truth is, the two biggest factors are the car's engine and how you drive it. Even a fuel-efficient car will get During that period most people probably burn 10x as much fuel as the rag top costs you the entire trip.

Accelerating more slowly, and avoiding passing on the highway, can have a tremendous impact on your fuel economy, as much as 5-10mpg overall. In a car that averages 25mpg, that's 20-35%! But none of us want to drive slow, do we?

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1 67alecto, regarding your answer "When compared to hard tops of the same model, you bet":Thank you so much for the information! I really appreciate it-it will definitely help me with my car buying decision. -Laura .

67alecto, regarding your answer "When compared to hard tops of the same model, you bet":Thank you so much for the information! I really appreciate it-it will definitely help me with my car buying decision. -Laura.

2 No problem. If you do end up getting a conertible, I strongly recommend one that either has a factory rollbar or one that you can get installed. These are welded to the frame and designed to add a level of protection should you every roll over in the car.

No problem. If you do end up getting a conertible, I strongly recommend one that either has a factory rollbar or one that you can get installed. These are welded to the frame and designed to add a level of protection should you every roll over in the car.

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It's suppposed to increase cars mileage but I can't find where to buy it.

Many factors go into a car's effect mileage. Streamlining is definitely one of them. Tire pressure is also very important - low tires have higher rolling friction and thus use more fuel.

This is probably 0.25 mpg, but it counts, over time. The truth is, the two biggest factors are the car's engine and how you drive it. Even a fuel-efficient car will get During that period most people probably burn 10x as much fuel as the rag top costs you the entire trip.

Accelerating more slowly, and avoiding passing on the highway, can have a tremendous impact on your fuel economy, as much as 5-10mpg overall. In a car that averages 25mpg, that's 20-35%! But none of us want to drive slow, do we?

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