Lotec Sirius Concept

Lotec Sirius Concept
Lotec Sirius Concept
The Lotec Sirius is a car manufactured by the German company Lotec. The German driver Kurt Lotterschmid is responsible for the project, who has a German C2 Championship Title in 1983. All his experience on the tracks is applied in this high-caliber sport.

The German company Lotec used elements and technology from the aircraft industry to achieve the highest level of performance. The first car manufactured by this company was the Lotec C1000 in 1992. That supercar possessed the 850 hp engine of the Sauber C9 racing (Le Mans) and weighed just 1,080 kg.

The design and construction process of the Lotec Sirius Concept took a period of 3 years of intense work. Made of carbon fiber on a tubular steel structure, the Sirius is an extreme sport with some comfort elements that make it more enjoyable if you decide to go on a long journey.

Some of the comfort elements present are the power steering and the air conditioner, which is very necessary as a result of the heat generated by the large V12 Bi-Turbo. With little more equipment than other sportsmen with similar ambitions, the Lotec Sirius retains a fairly low weight, more precisely 1,280 kilograms.

To reach the interior of the Lotec Sirius, it is necessary to have a city silhouette and equipped with agility, since access is as uncomfortable as if it were a real racing car.

Lotec Sirius Concept
Lotec Sirius Concept

The engine used in the Lotec Sirius is the same V12 Mercedes Benz that equips the successful Pagani Zonda. In the case of Sirius, the V12 received as an extra seasoning two KKK twin turbochargers that, in principle, adjusted to almost 0.9 bar of “boost”, collaborated to deliver a power of 850 hp.

Subsequently, the turbo pressure was increased to 1.2 bar. Along with other improvements, the Lotec Sirius reached its peak performance delivering 1,334 hp power at 6,300 rpm and a massive peak torque of 1,300 Nm at 3,400 rpm. With such a push, the Sirius accelerates from 0 to 100 km/h in 3.7 seconds and reaches a top speed of 400 km/h.

To stop this impressive car, a Brembo ABS servo assisted disc brake system was implemented. Other elements that provide high performance are the non-slip differential and the electronic control traction system.

Initially, Lotec planned to manufacture 5 Sirius vehicles per year, but the lack of demand meant that this will never materialize in reality.

Technical specifications of Lotec Sirius 2001

  • Central engine Mercedes Benz V12 Bi-Turbo
  • Turbo pressure: 1.2 bar
  • Displacement: 5.987 cm3
  • 48 VVT (DOHC) valves
  • Compression radius: 8.5 to 1
  • Power: 1,334 hp at 6,300 rpm
  • Torque: 1,300 Nm at 3,400 rpm
  • 5-speed manual gearbox
  • Rear wheel drive
  • Electronic traction control

  • 0 to 100 km/h in 3,7 s

  • Top speed: 400 km/h

Dimensions of Lotec Sirius 2001

  • Length: 4.120 mm
  • Height: 1.120 mm
  • Width: 2.080 mm
  • Rims diameter: 18”
  • Tyres: 225/45 ZR18 - 345/35 ZR18
  • Weight: 1.280 kg

© Adrián Blanco 2007 - No full or partial reproduction of text and/or images without explicit written consent of the author.

por Adrian Blanco