Tow Dolly vs. Trailer: Which Should You Choose for Your Move?

Understanding Your Towing Options: What Is a Tow Dolly or Car Trailer?

Figuring out the safest and most affordable way to move your vehicle starts with knowing exactly how each towing setup works. Below, we break down the specific designs, hauling limits, and road rules for both tow dollies and car trailers, giving you the clear details you need to pick the perfect option for your trip.

What is a Tow Dolly?

A tow dolly is a small, two-wheeled trailer that carries the front wheels of your vehicle while the rear wheels stay on the ground. You can picture it acting a lot like a wheelbarrow for your car.

Rental companies design these trailers for front-wheel-drive cars under a certain weight cap. For instance, U-Haul lists a maximum weight limit of 3,450 pounds for front-wheel-drive vehicles. This makes them a great option for smaller sedans and compact cars.

However, tow dollies come with an important limitation: You generally can't tow rear-wheel-drive cars safely on a dolly without getting underneath the car and disconnecting the driveshaft first. Most people moving prefer to skip that extra mechanical work and look for an easier option.

What is a Car Trailer?

A car trailer, sometimes called an auto transport, is a four-wheel trailer that carries your entire vehicle completely off the ground. None of your car tires will touch the road during the tow from your old home to your new one. Because it lifts all four tires off the pavement, a car trailer is structurally very different from a two-wheeled dolly.

These auto transports can carry much heavier loads, usually up to 5,290 pounds, so they can easily handle heavier vehicles, all-wheel-drive cars, four-wheel-drive trucks, and longer cross-country distances. While car trailers weigh more and cost more to rent than a dolly, they give you a lot more versatility and protect your car from extra road wear.

Tow Dolly vs. Car Trailer: 6 Key Differences

While both tow dollies and car trailers help you move your car from point A to point B, there are several major differences between them that will affect whether they’re best for your situation or not. Below, we go into each factor in more detail.

Quick Comparison: Tow Dolly vs. Car Trailer

At a glance, here is how the two options compare across the factors that actually drive your decision. We put together this quick cheat sheet so you can see the differences side by side.

Tow Dolly vs. Car Trailer Features

1. Cost

A tow dolly typically costs about half as much as a car trailer to rent. If you rent a tow dolly for a local move, you can expect to pay between $40 and $70 per day. Over a long-distance move, a dolly usually runs $100 to $300 total.

Car trailers cost more, running around $100 a day for local trips and $200 to $400 for a long-distance haul.

Winner for cost: tow dolly.

2. Vehicle Compatibility and Weight Limits

Tow dollies fit front-wheel-drive cars under a weight cap, while car trailers can tow almost any vehicle. A Budget tow dolly carries a front-wheel-drive vehicle weighing up to 3,300 pounds, U-Haul tow dollies hold up to 4,080 pounds, and Penske dollies offer a load capacity of up to 4,300 pounds.

If you have a heavier vehicle, you need a car trailer. Penske car carriers carry between 4,055 and 5,000 pounds, while U-Haul auto transports handle maximum loads up to 5,290 pounds.

Winner for vehicle compatibility: car trailer.

3. Ease of Use on The Road

Car trailers are generally easier to use than tow dollies because they load faster and let you reverse. You also can’t back up a tow dolly. If you try to back up your rental truck with a towing device attached, you risk severe damage to your vehicle and the equipment.

Winner for ease of use: car trailer.

4. Safety and Stability at Speed

Car trailers feel safer at highway speeds because they track securely, while tow dollies can sway at speed and have no brakes of their own. To keep your move on track safely, you must keep your speed at 55 MPH or below when towing your vehicle with a dolly.

Winner for safety: car trailer.

5. Wear and Tear on the Towed Vehicle

A car trailer adds zero mileage and zero tire wear to the towed vehicle. A tow dolly leaves the rear wheels on the ground, which adds rear tire wear and some transmission stress, depending on the car. If you want to avoid replacing your rear tires after a move, go with the trailer.

Winner for least wear and tear: car trailer.

6. Short vs. Long-Distance Moves

For short moves under a few hundred miles, a tow dolly is the cost-efficient and convenient pick. For cross-state or cross-country moves, a car trailer is the safer and more durable choice. Long distances compound the risks of trailer sway and rear-tire wear.

Winner for short distances: tow dolly.

Winner for long distances: car trailer.

When To Choose a Tow Dolly

Best for: Short moves of a light front-wheel-drive car on a budget.

A tow dolly is the right pick if you are towing a front-wheel-drive car a few hundred miles or less and want an affordable option. They work great for quick, local moves where keeping costs low is your top goal. Because dollies are smaller and lighter than full auto transports, they make a lot of sense if you have limited storage space or a tow vehicle with a lower overall towing capacity.

Benefits:

• Costs much less to rent.
• Lighter to tow behind your truck or personal vehicle.
• Takes up less space to park and store.
• Quick and easy to hitch up.

Drawbacks:

• You cannot reverse or back up once attached.
• Does not come equipped with its own brakes.
• Restricted to front-wheel-drive cars under a certain weight cap.
• Puts extra wear and tear on your rear tires.

When To Choose a Car Trailer

Best for: Long-distance moves, heavier vehicles, or anything with all-wheel or rear-wheel drive.

A car trailer is the right pick if you are towing a heavier vehicle, an all-wheel-drive car, or a rear-wheel-drive truck. They are also the smartest choice for moving over a few hundred miles. If you feel nervous about towing for the first time, a trailer gives you a lot of peace of mind because it feels much more stable on the highway.

Benefits:

• Adds zero wear and tear to your towed vehicle.
• Handles much heavier cars, carrying up to 5,290 pounds.
• Tracks smoothly and stays stable at higher speeds.
• Comes equipped with brakes and allows you to reverse.

Drawbacks:

• Costs about twice as much to rent.
• Adds more weight to your tow vehicle, which means you might need a stronger truck to pull it.
• Takes up more space for parking and storage.
• Takes a little more effort to maneuver when it is empty.

What You Need Before You Rent

Before you rent a tow dolly or a car trailer, you need a capable tow vehicle to pull it. If you feel anxious about whether your personal car can handle the job, there’s good news! You don't always have to use your own car. You can easily tow your equipment with a rental truck instead.

Whether you use a rental truck or your personal vehicle, your tow vehicle still needs a few key features to hit the road safely:

• A proper hitch system: You need the correct hitch class and a properly rated hitch ball to secure the equipment.
• Exterior mirrors: You must have working mirrors on both sides of your vehicle to see around the trailer.
• Operational lighting: Your tow vehicle needs working lighting connections so your brake lights and turn signals sync up with the trailer.
• Sufficient curb weight: Your tow vehicle must weigh more than the trailer and the towed car combined. For example, U-Haul requires your tow vehicle to weigh at least 750 pounds more than the car you are towing on a dolly.

It helps to keep in mind that standard rental tow dollies don't come equipped with their own brakes. Since you rely entirely on your tow vehicle to slow down, having that extra curb weight is critical for stopping safely.

Always remember to check the rental company vehicle requirements online before you book to make sure your setup is ready to go.