Long vs. Short Wheelbase: How Each Changes the Vehicle’s Handling – Jalopnik

One of the most impactful design choices that affects various aspects of a vehicle’s performance is its wheelbase. To properly understand wheelbase, imagine that you are looking at the profile of a car and imagine a line stretching from the center of the front wheel to the center of the rear wheel. The measurement of this line is the wheelbase of the vehicle. If you’re wondering why this distance matters, let’s look at some examples that illustrate the impact of wheelbase.

While it left the US market after 2019, the Smart ForTwo is coming back, and the 2014 model had a minimum distance of 74 inches between sets of small wheels. Now compare that to the Mercedes-Maybach S-Class, a very luxurious sedan that is often used as a limousine and has a wheelbase extended to 133.7 inches. Obviously, the Smart ForTwo is much shorter than the Maybach S-Class, giving it superior maneuverability and a much tighter turning circle. Which would you rather drive when navigating a compact urban parking lot?

While the Maybach S-Class may not be as agile due to its long wheelbase, it offers a significant advantage over the Smart ForTwo in terms of ride quality. The smoothness of your travel experience is all about the suspension system and its ability to absorb the imperfections of the road. The Maybach S-Class has almost 60 extra inches between the wheels compared to the Smart ForTwo, giving the suspension more time to react to bumps. Of course, there are other factors that affect suspension performance, such as larger tires, but wheelbase also plays a role. However, the differences between long and short wheelbase go even further, affecting aerodynamics and off-road performance.

F1 cars often travel at 350 km/h or more and reach ridiculous speeds during an event. This is achieved through meticulous engineering, which relies heavily on the physics of aerodynamics. One of the main components that creates downforce on these cars is the diffuser, which includes a scoop and fins at the rear of the car. Downforce is essential for an F1 car as it helps press the wheels into the track and improves stability. But what does this have to do with wheelbase?

James Key, the technical director of Toro Rosso (now known as Racing Bulls), explained Formula1.com“I think this year [2017] the reason we see a difference on longer cars than we have seen before is because the diffuser is more powerful. A longer wheelbase can mean a larger floor area and, in combination with the large, suction diffuser, you can get a bit more downforce from it.” Diffusers are used not only in F1, but also in extreme hypercar models, such as the Bugatti Tourbillon V16 hybrid.

Imagine a stretch of trail with a hill, steep on both sides and with virtually no room at the top. Essentially, just as the bands reach the top, they immediately descend into a steep downgrade. A vehicle with a long wheelbase could potentially become stuck, with the underside hitting the ground with both wheels in the air.

Additionally, depending on the technical difficulty of a particular trail, you will want the tighter turning ability provided by a shorter wheelbase. This not only ensures more agile navigation, but on uneven terrain it can also provide more stable cornering.