Automotive

Czinger's hybrid tandem 21C boasts the world's most power-dense engine

Czinger's hybrid tandem 21C bo...
The Czinger 21C hybrid tandem hypercar has finally been fully released
The Czinger 21C hybrid tandem hypercar has finally been fully released
View 16 Images
Chassis includes many 3D-printed par
1/16
Chassis includes many 3D-printed parts and some carbon fiber rods
The 2.88-liter twin turbo V8 motor will make almost a thousand horsepower on its lonesome
2/16
The 2.88-liter twin turbo V8 motor will make almost a thousand horsepower on its lonesome
The world's most power-dense production engine, at some 329 horsepower per liter
3/16
The world's most power-dense production engine, at some 329 horsepower per liter
A distinctive rear
4/16
A distinctive rear
Suspension control arms feature complex hollow geometries only achievable through layered 3D printing
5/16
Suspension control arms feature complex hollow geometries only achievable through layered 3D printing
The whole chassis weighs 120 kg
6/16
The whole chassis weighs 120 kg
Tandem seating arrangement makes the cabin very narrow
7/16
Tandem seating arrangement makes the cabin very narrow
Lightweight track configuration ditches the back seat for a helmet bag
8/16
Lightweight track configuration ditches the back seat for a helmet bag
3D-printed metal nodes and carbon rods enclose the engine bay
9/16
3D-printed metal nodes and carbon rods enclose the engine bay
The double-wide door looks like a UFO has crashed into the car
10/16
The double-wide door looks like a UFO has crashed into the car
You're unlikely to win the hearts of passengers with this layout
11/16
You're unlikely to win the hearts of passengers with this layout
A weird and unmistakeable car
12/16
A weird and unmistakeable car
Pop the rear hood for engine access
13/16
Pop the rear hood for engine access
That's a big ol' door
14/16
That's a big ol' door
The Czinger 21C hybrid tandem hypercar has finally been fully released
15/16
The Czinger 21C hybrid tandem hypercar has finally been fully released
Street and track-focused variants are available
16/16
Street and track-focused variants are available
View gallery - 16 images

Kevin Czinger has finally launched his dream hypercar at a private event in London, after Covid-19 fears rightfully shut down this year's Geneva Auto Show, along with pretty much everything else that represents business as usual.

With markets in freefall, this might seem like a difficult time to be launching a hypercar. But fear not! The ultra-rich are rarely the ones to suffer in global crises. Czinger only needs to offload 80 of these machines, since that's the limit of the run. We're confident he'll manage just fine. Here's what the moneyed elites will get for the scraps off their tables.

The Czinger 21C is a remarkable and unmistakable machine. We've seen cars before that place the driver front and center, but tandem seating arrangements are very rare. The driver will have an amazing view of the road ahead, and the passenger will have an amazing view of the driver's hairdo.

You're unlikely to win the hearts of passengers with this layout
You're unlikely to win the hearts of passengers with this layout

Back-seat passengers do get a small screen to look at, which might be used to show a forward camera view of what's happening, but the experience of riding in the back of this thing looks anything but glamorous. Indeed, you may wish to put passengers out of their misery altogether and specify yours with the optional track package, which replaces the back seat with a helmet bag.

Ingress and egress are achieved via a colossal double-length door, with a diagonal upwards opening that does little to hide its ungainly proportions. Elegant gullwing Mercedes this is not; with the door open, the 21C looks like a supercar that's had a small UFO crash into it. The interior itself, on the other hand, looks as slick and futuristic as you'd hope for a video game car like this one.

The powertrain is hybrid, but the majority of this 1,250-horsepower widowmaker's power comes from a tiny mid-mounted combustion engine that Czinger is building in-house. At just 2.88 liters, it's an 80-degree, twin-turbo V8 with a flat-plane crank and four valves per cylinder. By revving it to a ludicrous 11,000 rpm and cranking the boost to about 21 psi, Czinger manages to extract an ungodly 947.5 horsepower. That would make this the world's most power-dense engine, at 329 horsepower per liter, albeit probably one you'd need to spin up to get the most out of, if getting the most out of thousand-horsepower motors was a vaguely necessary thing given that modern tires can barely handle seven hundred.

Luckily, there's 200-odd horsepower and 370 Nm (273 lb-ft) of axial flow electric motors ready to apply instant torque at any moment through this AWD powertrain, amply filling in any gaps in acceleration as you work your way through the seven-speed sequential gearbox, which can be specified as a sweet synchro-mesh to prioritize smooth street shifting, or as a "full race dog gearbox for fastest possible shift times."

The 2.88-liter twin turbo V8 motor will make almost a thousand horsepower on its lonesome
The 2.88-liter twin turbo V8 motor will make almost a thousand horsepower on its lonesome

Kevin Czinger is the CEO of advanced manufacturing concern Divergent 3D, and the Czinger 21C can best be viewed as a full-production descendant of 2012's Divergent Blade supercar. The Blade used a complex and beautiful space frame design built almost entirely out of carbon rods and 3D-printed aluminum nodes, and while the 21C does feature some of this Meccano-like approach in its design, it also steps things up on the additive manufacture side.

We're talking hollow front control arms with three-dimensional internal structures, impossible to manufacture with a CNC machine and boasting insane strength and light weight. Strange, organic-looking shapes that have been evolutionarily optimized using fascinating generative design techniques. Many components are printed in their own specific alloys for optimal performance, and parts have been designed to perform many functions at once, combining structural strength, torsional stiffness, safety, cooling and even exhaust sound management into a single shape.

As a result, the chassis itself weighs just 120 kg (265 lb), and the total dry vehicle weight is kept below an impressive 1,200 kg (2,646 lb). This places the 21C among the hallowed ranks of toys offering more than one horsepower per kilogram of weight, a category that includes just a handful of million-dollar hypercars, a few track-focused rabble-rousers and pretty much every full-fat supersport motorcycle since the late 2000s.

The resulting performance claims are otherworldly. 0-62 mph (0-100 km/h) in 1.9 seconds. A quarter mile in 8.1 seconds. 0 to 186 mph (300 km/h) in 15 seconds, or 0-248-0 mph (0-400-0 km/h) in 29 seconds. The lattermost figure would soundly beat the 31-odd seconds it took the Koenigsegg Regera, making it the fastest 0-400-0 car in the world. Wherever you're going, you'll get there fast. Unless, of course, there's other traffic in the way, or red lights, or zebra crossings, or speed bumps, and so on.

The double-wide door looks like a UFO has crashed into the car
The double-wide door looks like a UFO has crashed into the car

A truly weird and hugely excessive machine, the 21C doesn't carry a price tag as yet. But we feel confident it's a sum of money that should be criminal to spend on a high-performance vanity item. According to Czinger, it's the beginning of a series of "path breaking performance vehicles." Enjoy a short video presentation below, or plenty of photos in the gallery.

Czinger 21C global debut - first look at 21Cs in the real world

Source: Czinger

View gallery - 16 images
3 comments
Pmeon
On which particular urban street or public road with average drivers travelling at a nominal speed of 30 to 100 km/hr with bumper to bumper traffic would one need a 1250 hp car?
If you want to go fast in a safe controlled environment for yourself and other people who have zero faith in your driving ability go buy a race car and compete on a track.
If you want to go from 0 to 1000 km/hr in 1.9 seconds, strap a rocket engine onto a $200 car and have ten times the thrill.
VincentWolf
The 2021 Tesla Roadster will trash it and embarrass it.
Mike Malsed
so granted, the top speed is ludicrous. The acceleration is not practical. Whatever. TECHNOLOGICALLY - that 2.88L engine making nearly 1000HP? HOLY CRAPOLY! Now - how about taking that motor and tuning it away from 947HP and down to maybe 200HP and GREAT mpg paired with those electric motors . . . and making it available to Ford or Honda or Hyundai or something. . . that could be a game changer there!