Koenigsegg CCR

The Koenigsegg CCR is an automobile made by Koenigsegg. Designed and manufactured in Ängelholm, Sweden, it debuted at the 2004 Geneva Auto Show. It briefly held the world speed record for a production car. It is currently the fourth fastest production car, behind the Bristol Fighter T (First),Bugatti Veyron (Second) and the SSC Ultimate Aero TT (Third).

Overview

The CCR is based on the Koenigsegg CC8S but is more powerful and has better performance. The more powerful engine of the prototype was made possible by the use of a Lysholm twin-screw supercharger and a titanium exhaust system. This takes the power output to a maximum of convert|806|hp|kW PS|abbr=on at 6,900 rpmFact|date=March 2008. Torque is also distributed evenly and peaks at convert|920|Nm|ftlbf|abbr=on at 5,700 rpmFact|date=March 2008. This car was the first production vehicle to sport a horsepower gaugeFact|date=March 2008 - it has since been joined by the Bugatti Veyron.

However, the Lysholm twin-screw supercharger is not used in production cars. According to the official Koenigsegg book (ISBN 91-975178-3-6), it was lumbering and difficult to install in the mid-engined package. The production CCR is equipped with dual centrifugal compressors which are manufactured by Rotrex instead. It provides the same power, but lowers the peak torque point from 5,700 to 5,400 rpm.

Externally the CCR looks similar to the CC8S, but features a new side air-intake design, a tweaked headlight arrangement, a revised rear-end, larger brakes, more power and new front splitters for optimized downforce. Like the CC8S, the CCR is a two-seat coupe with a mid-engine, featuring large, high-tech dihedral synchro-helix actuation doors that open by rotating up and forward.

To honour the Swedish Fighter Jet Squadron No. 1, (Johan röd) which had occupied the current facility of Koenigsegg, the CCR is adorned with a symbol of a ghost, the symbol of the squadron.

On a History Channel special on the CCR (Aug, 2006), Koenigsegg states that the base price for the CCR is approximately US$590,000.

Testing history

The manufacturers claimed in 2005 when the car was released that the CCR is the fastest road car in the world, with a theoretical top speed of more than 390 km/h (245 mph); however, this has since been beaten by the Bugatti Veyron in 2006. As of October 2007, the SSC Ultimate Aero TT now holds the world record for the fastest production car (413 km/h, 257 mph).

On February 28, 2005, at 12.08 local time, the Koenigsegg CCR broke the production road car speed record, achieving a new official top speed of 387.87 km/h (245 mph) at Italy's Nardo Prototipo proving ground. A team of five Koenigsegg engineers and mechanics together with founder Christian von Koenigsegg ran a technically standard CCR, driven by famous supercar test driver and veteran record breaker Loris Bicocchi.

The CCR took the record from the McLaren F1, which held the record for over 12 years of convert|386.7|km/h|mi/h|0|abbr=on, set on the 9 km straight track at the VW Ehra facility in Wolfsburg, Germany. The CCR ran on the Nardò/Prototipo track, a circular track with a circumference of 12.5 km. This means that the car is driven in a constant turning motion, which makes the exercise and speed even more impressive. The steering wheel at this speed is kept at around 30 degrees of constant angle, a fairly sharp angle for the speed. On the same track, the F1 managed an unofficial record of convert|372|km/h|mi/h|0|abbr=on. [ [http://www.koenigsegg.com/company/index.asp?submenu=3 Koenigsegg Official Website ] ]

In May, 2005 not long after the CCR claimed the record, a prototype of the long awaited Bugatti Veyron took the crown with a top speed over 400 km/h (249 mph). The final production model of the Veyron reached a speed of 407.5 km/h (253.2 mph) in the hands of Car and Driver in their November 2005 issue. However, the Bugatti set the record on the aforementioned official VW-test track in Ehra-Lessien with a 9 km unbroken straight, as opposed to the Nardò-track which is circular.

Specifications

Performance

* Acceleration: 0-100 km/h (0–62 mph) 3.2 seconds Fact|date=March 2008
* Top speed:*Standing quarter mile: 9.9 seconds, end speed convert|235|km/h|mi/h|0|abbr=on Fact|date=March 2008
*Braking distance: 31 m (100–0 km/h) Fact|date=March 2008})

Body

Two-door, two-seater with removable hardtop stowable under the bonnet. The body is made of carbon fibre/kevlar as well as lightweight hard-foam sandwich reinforcements for gasFact|date=March 2008.

Dimensions

*Ground clearance: auto mm|100|1
*Luggage compartment: 120 litres (4.24 cubic feet)

Aerodynamics

*"C"_d 0.297 Fact|date=March 2008
*Frontal area 1.825 m² Fact|date=March 2008
*Underbody venturis and diffusers Fact|date=March 2008

Suspension

*Double wishbone, front and rear.
*Adjustable shock absorbers.
*Electronically adjustable ride height.

Brakes

* Front and rear ventilated disc brakes, 362 mm x 32 mm (14.25" x 0.8"). Fact|date=March 2008
* 6 piston calipers. Fact|date=March 2008

Wheels

*Koenigsegg magnesium alloy wheels with center locking.
*Front: 19" x 9.5"
*Rear: 20" x 12.5"

Tires

*Michelin Pilot Sport 2 tires. Unidirectional with asymmetric tread pattern.
*Front: 255/35–19"
*Rear: 335/30–20"

Steering

* Rack and pinion power steering.
* 2.7 turns lock to lock.
* Turning circle: 11 metres.

Engine specifications

* Type: Koenigsegg aluminium V8, 4 valves per cylinder, double overhead camshafts. Carbon Fibre cam covers.
* Engine displacement: 4.7 litres.
* Compression ratio: 8.6:1
* Weight: convert|215|kg|lb|0|abbr=on Fact|date=March 2008
* Lubrication system: Dry sump with under-piston oil squirters; oil cooler.
* Motor oil: SAE 10W60 synthetic.
* Oil tank capacity: 12 litres (10.6 imperial quarts)
* Induction system: Sequential multipoint fuel injection. Dual Rotrex centrifugal intercooled superchargers with maximum 1.4 bar (140 kPa) boost pressure.
* Fuel: 98 RON unleaded.
* Ignition system: Electronic Coil on plug (Direct Ignition - DI).
* Engine redline: 7,600 rpm. Fact|date=March 2008

Transmission

*Purpose-built Cima 6-speed transmission.
**Incorporates internal oil pump with cooler.
**Torsen limited slip differential.
*Electronically-operated, sintered organic dual-plate clutch of 215 mm (8½ inch) diameter.

References

External links

* [http://www.koenigsegg.com/ Official site]