Devel Sixteen III Concept Supercar by Mark Hostler


Submitted by Mark Hostler, the Devel Sixteen III is a concept inspired by the Devel Sixteen concept supercar that was first revealed in 2013. The project was started just before the Coronavirus Lockdown began and so it’s a personal project he did during his free time. Just to be clear, this project is not affiliated with or endorsed by Devel Motors. You can read Mark Hostler’s explanation below.

Designed around Steve Morris Engines’ 12,500cc v16 Quad Turbocharged engine (showcased in 2015), the design of the new Devel sixteen III concept is an up to date re-imagining of the previous 2 iterations of the Sixteen, with a greater focus on cooling and high speed stability. The design language takes cues from the Fighter Jet inspired aesthetics of the previous 2 Devel concepts, but with more of a focus on sharp angled surfaces, such as those on modern stealth equipped warplanes like the F35. The extremely low roofline contributes to a minimal frontal cross section, allowing for a low drag coefficient. The design also features rear cameras instead of mirrors to further reduce drag, and an adjustable front splitter. The majority of the bodywork is finished in a satin metallic black, further tying the design to modern stealth aircraft, but with anodized bright red highlights in the filler cap, center lock wheel nuts and wheel spokes.

Devel Sixteen III Concept Supercar by Mark Hostler

Devel Sixteen III Concept Supercar by Mark Hostler

Mark Hostler explains the structural layout is based on the well-proven design formula of a carbon-fiber passenger cell, with front and rear subframes built from a combination of carbon, steel and aluminum. The car measures 5.3 Meters in length, even longer than the Mclaren speedtail, allowing for both the length of the v16 aluminum Block, Racing Transaxle transmission, and large front and rear overhangs to improve high-speed aerodynamic stability and downforce. The structure features double wishbone pushrod-actuated adjustable suspension. Each bank of four cylinders has an individual exhaust manifold, feeding directly into each of the four 80mm turbochargers that pull air through four channels from the exposed vents in the side of the bodywork. The induction system features boost limiter valves to allow the driver to reduce the engine’s power output for improved ease of use.

Devel Sixteen III Concept Supercar by Mark Hostler

Devel Sixteen III Concept Supercar by Mark Hostler

The front, sides and roof of the car all feature extremely large air intakes, which feed air to engine cooling radiators and turbocharger intercoolers, situated above the engine, in the side pods, in front of the rear wheels and in the front section. Many of the externally visible components that make up the car’s aerodynamic elements are constructed from forged carbon composite, left unfinished to expose the unique texture of the material. This includes the massive rear diffuser that features individual upper and lower sections to allow for adjustable down force.

The wheels are also constructed from carbon fiber and feature forged carbon vanes that pull cooling air over the carbon ceramic brake discs. The car also features 2 filler caps, one each side. These each feed into separate fuel tanks, a standard large size tank for regular pump gasoline, and a smaller auxiliary tank that is filled with e85 ethanol. A steering wheel switch allows for switching to the E85 tank and modifies engine ECU mapping and throttle response to give maximum performance on a drag strip.

Inside, the Sixteen III has a more focused interior than its predecessors. It features exposed forged carbon structures, minimal controls and alcantara seats. Four buttons on the titanium central spar select the automatic gears, with wheel mounted paddles for sequential control. The dashboard features digital dials, with the skeletonized carbon steering wheel featuring a rev counter and 2 auxiliary screens that display important vehicle information. In the center console there is an 11-inch, high resolution screen that controls the navigation, climate, entertainment and other car systems.

More images of Devel Sixteen III Concept Supercar:
Devel Sixteen III Concept Supercar by Mark HostlerDevel Sixteen III Concept Supercar by Mark HostlerDevel Sixteen III Concept Supercar by Mark HostlerDevel Sixteen III Concept Supercar by Mark Hostler

Tuvie received “Devel Sixteen III Concept Supercar” project from our ‘Submit A Design‘ feature, where we welcome our readers to submit their design/concept for publication.



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