RUF Developing Electric Test Vehicles Based on the Porsche 911 Carrera

Porsche tuner RUF Automobile is developing ten electric vehicles with three different powertrains based on the 911 Carrera (997), which will be put to the test in “real life situations”. The prototypes are being manufactured in cooperation with German electronics giant Siemens AG and are going to be presented in the first half of 2011. The three eRUF variants feature a single motor concept, twin motor concept with 2-speed gearbox and twin motor concept with torque vectoring.

The first powertrain comprises a 180 kW (241HP) electric motor, 29 kWh lithium-ion battery and standard Porsche gearbox used for speed reduction. The setup offers an estimated driving range of 150 km (93 miles) and decent performance: 0 to 100 km/h (62 mph) in 7 seconds and a top speed of 220 km/h (137 mph).

The prototypes using the twin motor concept are even faster, reaching 100 km/h (62 mph) in about 5 seconds, while also maxing out at 220 km/h or 137 mph. Two synchronous electric motors deliver 250 kW (335HP) and are coupled to a 2-speed automatic transmission. The more potent battery pack (36,6 kWh) extends the driving range to 200 km (124 mph).

Last but not least, the third variant uses the same twin motor setup, while adding torque vectoring into the mix as well. Engineers mounted two separate gearboxes into the car, each powering a rear wheel. Acceleration and driving range are the same, however estimated top speed decreases to about 180 km/h (112 mph).

The field test are expected to provide important data on the different battery and powertrain setups, which will be handed over to the German Federal Ministry of the Environment, also involved in the project.

eRUF variants [Press Release]

1. Single Motor Concept
- Base vehicle, Porsche 997 Carrera
- Electric motor (180 kW) and inverter from Siemens AG
- Porsche production gearbox used for speed reduction
- Lithium-ion batteries with an energy capacity of 29 kWh
- Integrated charger, DCDC-converter, plug, socket and charging cable
- interior heating
- Data recording unit for analysis and documentation of the charging/ discharging, journey and component data
- Driving range approximately 150 km, maximum speed about 220 km/h, acceleration from 0 to 100 km/h in about 7 seconds
2. Twin Motor Concept with 2-speed Gearbox
- Base vehicle, Porsche 997 Carrera
- Two transversely mounted Siemens synchronous electric motors (250 kW) with double inverters
- Automatic 2 speed gearbox, limited slip differential
- Liquid cooled and heated lithium ion battery with an energy capacity of 36,6 kWh
- Integrated charger, DCDC-converter, plug, socket and charging cable
- interior heating
- Data recording unit for ananlysis and documentation of the charging/ discharging, journey and component data
- Driving range approximately 200 km, maximum speed about 220 km/h, acceleration from 0 to 100 km/h in about 5 seconds
3. Twin Motor concept with Torque Vectoring
- Base vehicle, Porsche 997 Carrera
- Two transversely mounted Siemens synchronous electric motors (250 kW) with double inverters
- Two seperate angular bevel gearboxes for independent rear wheel drive
- Liquid cooled and heated lithium ion battery with an energy capacity of 36,6 kWh
- Charging via inverter, DCDC-converter, plug, socket and charging cable
- interior heating
- Data recording unit for analysis and documentation of the charging/discharging, journey and component data
- Driving range approximately 200 km, maximum speed about 180 km/h, acceleration from 0 to 100 km/h in about 5 seconds

READ MORE - RUF Developing Electric Test Vehicles Based on the Porsche 911 Carrera

Studio RUF has strengthened Porsche Cayenne

Experts of bureau RUF love and are able to alter cars Porsche in ecologically pure.

A vivid example — completely an electric coupe 911. Therefore tuners also could not pass by the first diesel model from Stuttgart — Porsche Cayenne.

For an off-road car Germans have offered at once two new programs of management of 3 litre diesel engine TDI (240HP, 550 Nm). The first lifts return to 288 forces and 560Nm. The second increases power to 310HP (610Nm).

Besides, diesel Cayenne it is possible to add with firm carbon disks and brakes. Work of tuners will manage to you in rather moderate sum of money. For example, for change-over of operating electronics of the engine ask 3,048 and 6,379 euros accordingly.

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READ MORE - Studio RUF has strengthened Porsche Cayenne

Ruf CTR 3.

As this is typed 20 orders have been taken for the Ruf CTR 3. It could be seen as the most dramatic incarnation of the Porsche Cayman yet it is so much more. For a start Ruf, who have been producing modified Porsche’s since 1963, have given the CTR 3 an ample 700PS twin turbo flat 6 power plant. Combined with a heavily improved chassis and suspension system and the CTR 3 is clearly a very fast and stable vehicle. The sequential six speed ‘box is light and easy to use, it does take a little time to get used to any sequential ‘box in a road car and the CTR 3 is no different. Once the driver has mastered pulling (to go up the ‘box) and pushing (to go down the ‘box) the sequential ‘box is as east to use as an H pattern gearbox in current production.
Ruf have created an exceptionally rapid sports coupe but they have not sacrificed usability for outright performance, the clutch doesn’t require super human effort to master, nor will it snap your leg off as it feeds in. The CTR 3 it is suitable for the school run or a trip to the newsagent for a bottle of milk, ESP keeps the power nicely in check when required and the suspension copes admirably with all road surfaces encountered ~ there are none of the traditional super car lurches, bangs or crashes on normal everyday roads, the CTR 3 really is a accomplished daily driver.
When performance and the Ruf CTR 3 are mentioned there are a few figures that spring to mind. Firstly the already mentioned 700PS, secondly a top speed of approximately 230mph and thirdly 890Nm of torque. With the sprint to 62mph taking a mere 3.2 seconds it is clear that the CTR 3 is blisteringly fast, it is in the true super car league.
If the dynamics and performance of the CTR 3 are impressive so is the mating of standard Porsche with Ruf genius. The interior is clearly directly from Zuffenhausen, retaining all the features and comforts one expects from a Porsche, including cup holder and Sat Nav. Yes the rear view mirror has been replaced by a mini-camera but even that doesn’t strike one as being out of place.
At over £345,000 it is clear that many more than 20 customers will be hard to find for this über-Cayman, those that can afford the Ruf CTR 3 will have smiles as wide as America across their faces from now until eternity.

TECH SPEC RUF CTR 3:~ 2 seat, 2 door Coupe. 3746cc 6 cylinder water-cooled flat six engine producing 700PS @ 7000rpm. 6 speed sequential gearbox. Rear wheel drive. Top speed 232mph. 0-62mph 3.2 seconds, 0-124mph 9.6 seconds.

READ MORE - Ruf CTR 3.