Playground Games' open-world racer for Xbox OneForza Horizon 4, is renowned for its vast, gorgeous landscapes and its plethora of content. Yet, its particularly large and diverse lineup of vehicles also proves a major draw for this racer.

With everything from huge, roaring trucks to sleek Lambos and puttering microcars, there's a car for just about everyone in this epic racing romp. And even moreso than its predecessors, the 4th entry in this popular franchise is laced with some truly unique and rather strange vehicles.

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This list will highlight 10 of the weirdest and most obscure. Perhaps the most peculiar aspect is that these are based on actual cars. Buckle up - we're in for a wild ride!

10 Quartz Regalia Type-D

The fact that this monstrosity of a car is lifted from a Final Fantasy game - specifically FFXV - is peculiar enough. But the uniquely bulky design and distinct features of this off-road vehicle really make its inclusion on our list of Forza oddities warranted.

The Quartz Regalia is a four-seat convertible decked out with an interior of dark leather, and even has a Chocobo talon motif on its hubcaps for some extra FF flair. Not only this, but it's also been fitted with boosters at the bottom to allow for optimal leaps over obstacles.

This model is unlockable by way of the skill tree of the Quartz Regalia.

9 Cadillac XTS Limousine

Players can race across Great Britain in luxurious style with this fancy limousine fit for a star. Obviously, this elongated limo isn't the most ideal for navigating tight spaces or sharp turns. Nor is it the most practical for zipping across raceways or partaking in offroad escapades. Regardless, it does make for a fun, visually-neat novelty.

This coveted car can be scored via a Wheelspin prize, but has also made appearances during recent seasons as a reward for completion bonuses.

8 Mercedes-Benz UNIMOG U5023

This all-terrain Benz is quite the juggernaut; one clearly geared towards players favoring sheer power and brawn over swiftness.

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This thing can certainly be useful for plowing through shrubbery or making one's way across rough terrain. Just don't plan on getting much out of this beast of a truck for races, as it only has a top speed of 56 mph. Still, with a massive weight of well over 15000 lbs, it can be quite the intimidating death machine, which can plow through cars like nothing.

7 BMW Isetta 300 Export

This little guy brings new meaning to the term "compact," standing as one of the smallest and lightest cars in the game. The BMW Isetta has a basic look and cheap, lightweight feel that comes across as a toy car for children rather than an actual, functioning vehicle.

It's truly a blast from a simpler, more humble past, with its design that dates all the way back to 1957. It certainly feels that old too, as this 920 lb car is capable of topping off at a measly 56 mph. It's also highly susceptible to toppling when turning around sharp corners.

Basically, this one's meant to be toyed with as am amusing little novelty for 5 minutes, rather than using it for any serious competition.

6 Peel P50

Forza Horizon 4 Peel P50 small car with face

Believe it or not, there is another vehicle in FH4 that makes the previous entry look large by comparison. Enter the Peel P50 - if you're small enough in stature to do so, anyway...

This minuscule machine is a three-wheeled microcar, dating back to the Swingin' 60s, and standing as one of just 50 manufactured during those years. As is the case in real life, this cute little car is more a novelty item in FH4 than a practical means of transport or racing.

Those that do intend to get from A to B in this thing will need plenty of patience, as it chugs along at a top speed of just 43 mph. But hey - it's at least a nice option for passive drivers looking to kick back and really take in the gorgeous scenery.

5 Ford De Luxe Five-Window Coupe

Speaking of old-school automobiles, this one can be traced all the way back to the very early days of the Ford Motor Company, with a design resembling the iconic Model-T. This vehicle, otherwise known as the Model B, was the first Ford production model equipped with a V8 engine.

This classic 1932 car hit the scene as part of the Forza Horizon 3 Hot Wheels Expansion, before becoming a defacto Autoshow purchase for just 35,000 CR. This retro car certainly stands out amongst a lineup of sleek, modern designs - most of which have been manufactured close to a century later.

4 Top Gear Track-Tor

This is a tractor in a flashy, modern-day racing game. Really, what more needs to be said?

This one is quite bizarre by virtue of its mere existence in this game, to be sure. But really, even when it comes to tractors, the Top Gear stands out amongst others of its ilk with its distinct lopsided build and unique modifications such as cherry bomb exhausts.

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This bit of farming equipment is awarded to the player upon knocking out the 5th Tier in the Top Gear Horizon Special.

3 Peel Trident

No, this isn't a UFO ripped from a 50's sci-fi film, it's an appropriately tagged "microcar" featured as part of the FH4 "Car Pass."

This cute little button of a car from the UK is actually capable of seating 2 people, despite its amusingly small, three-wheeled build. One certainly shouldn't expect to have their hair blown back by this thing, as its speed tops out at a meager 47 mph. In fact, it's outdone in slowness only by the P50, while its launch and braking manage to be even worse.

While this little guy won't generate much in terms of horsepower, it's sure to generate some laughs while buzzing around.

2 Morgan 3 Wheeler

Speaking of vehicles that resemble a child's Cozy Coupe, the Morgan 3 Wheeler stands as another tiny car that makes for an amusing (and slow) ride.

Despite its retro 50's appearance and modest size, this car is actually a 2014 production from the UK, and has a surprisingly-decent rate of acceleration. Still, it won't exactly set the world ablaze with its top speed struggling to eclipse 60 mph.

1 Volvo Iron Knight

This one is bizarre in a multitude of ways - not the least of which is its uniquely obscure hybrid design.

Not only this, but the Iron Knight managed to secure the record for being the world's fastest truck, reaching a speed of 60 mph in just 4.6 seconds. This oddly-shaped race truck is also the most powerful car in the Forza series with a whopping 2400 horsepower - making it a seemingly unstoppable force of nature.

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