Old news VW showed the first "L-1" back in 2002...
https://en.wikipedia.org/wiki/Volkswagen_1-litre_car
Copy:-
Prototype[edit]
The prototype VW 1-litre
concept car was shown to the public in April 2002 when
Ferdinand Piëch, then chairman of the board of management, drove the concept between Wolfsburg and Hamburg as part of the Volkswagen annual meeting of
stockholders.
For aerodynamics, the car seats two in
tandem, rather than side-by-side. There are no rear view mirrors and it instead uses cameras and electronic displays. The rear wheels are close together to allow a streamlined body. The total
aerodynamic drag is minimal because both the
drag coefficient and frontal area are small (see
drag equation). The
drag coefficient (
Cd) is 0.159,
[5] compared to 0.30 - 0.40 for typical cars.
The external dimensions of the car are 3.47 m (11.4 ft) long, 1.25 m (4.1 ft) wide and 1.10 m (3.6 ft) tall. There is 80 l (2.8 cu ft) of storage space. The car features an
aircraft-style canopy, flat wheel covers and an underbelly cover to smooth the airflow. The engine cooling vents open only as needed.
1L Concept Replica at the AUTOVISION Tradition & Forum Museum in Germany.
For light weight, the car uses an unpainted
carbon fibre skin over a
magnesium-alloy subframe. Individual components have been designed to be low weight, including engine, transmission, suspension, wheels (carbon fibre), brakes (aluminium), hubs (titanium), bearings (ceramic), interior, and so on. Empty vehicle weight is 290 kg (639 lb).
The body and frame are designed with crush/
crumple zones and roll-over protection, and the tandem seating means large side crush zones. Volkswagen claims protection comparable to a GT racing car. The car has
anti-lock brakes, airbags with pressure sensors, and
stability control.
[9]
The engine is a one-cylinder 299 cm3 (18 cu in) diesel producing just 6.3 kW (8.4 hp). It drives through a six-speed transmission that combines stick-shift mechanics, weight, and drive efficiency with automatic convenience and efficiency controls. There is no clutch pedal. The gear selection (forwards, reverse or neutral) is made using a switch on the right-hand side of the cockpit. The engine is switched off automatically during deceleration and stops, and auto-restarted when the acceleration pedal is pressed.
According to Volkswagen, the vehicle consumes 0.99 l/100 km (238 mpg‑US; 285 mpg‑imp), giving it a 650 km (404 mi) driving range on one tank of fuel.
At the 2007 Frankfurt Motor Show senior VW exec Ferdinand Piëch claimed the car would be available by the end of the decade.
[10][11]
Around June 2008 car magazines were reporting a powerplant change to a two-cylinder diesel-electric hybrid. Volkswagen only expected the car to be a limited production run, and prices were expected by one industry insider to be between €20,000 and €30,000.
[10][11]