Lamborghini made a unique statement with its one-of-a-kind Lambo doors. Instead of pulling the doors towards you, Lamobrghini had you pull it upward. Pretty slick and unique, right? Well, if you thought that they were the first to do something different with their doors, then you’re in for a surprise. There’s this model (that even your dad or granddad might not be familiar with anymore) that made its doors slide in order to open. That model is the 1954 Kaiser-Darrin DKF161.

The 1954 Kaiser-Darrin DKF161 carried a limited production run, with only 435 units produced. Due to its small number, the sports car is considered the most collectible Kaiser vehicle produced. But even though its production numbers made it highly valued, what took the cake was its unique sliding doors, especially since there aren’t many sports cars that utilizes this type of door anymore.

However, its limited run and sliding doors weren’t the only things that made the 1954 Kaiser-Darrin DKF161 successful. It carried a hand-made Henry J chassis that was covered by a fiberglass body. It also sported a Willys F-head engine that enabled the sports car to produce 90 hp. The engine also allowed the ’54 Kaiser-Darrin DKF161 to go from 0 to 60 mph in just 13 seconds. Not only that, it allowed the vehicle to reach the 100 mph mark as well.

But despite the unique engines and features, the 1954 Kaiser-Darrin DKF161 has its drawbacks. First, its fiberglass body made the sports car susceptible to cracking. Second, its parts - including the ones meant for its windshield - were difficult to come by. And lastly, since it carried a very steep price tag, most drivers shied away from getting one.

Nonetheless, the 1954 Kaiser-Darrin DKF161 is considered a collectible item among car enthusiasts. Out of the 435 units made, 400 are still alive until today. So if you’re interested in having a sports car with unique sliding doors, then keep an eye out for this sports car.

Sources: How Stuff Works, Skwishmi