This challenge is made all the tougher when the task at hand involves designing a new 12-cylinder engine, the power unit that hailed the start of the glorious Prancing Horse story 70 years ago in 1947.
On this occasion, intensive research and development focused on exploiting Ferrari’s wealth of track-derived engineering know-how has produced the 812 Superfast, designed to offer its drivers both benchmark performance across the board and the most riveting and rewarding driving experience possible.
With its output boosted to 800 cv, 60 more than the F12berlinetta, the 812 Superfast is the most powerful and fastest road-going Ferrari ever built (with the exception, of course, of the rear-engined special limited-series 12-cylinders). The 812 Superfast thus ushers in a new era in Ferrari 12-cylinder history, and, in doing so, builds on the invaluable legacies of the F12berlinetta and F12tdf.
To make full use of that huge power and to guarantee perfect weight distribution, the car exploits a highly evolved transaxle architecture that couples a front-mounted engine with a rear-mounted transmission.
It is also the first Ferrari equipped with EPS (Electric Power Steering).
NOTE: The values of fuel consumptions and CO2 emissions shown were determined according to the European Regulation (EC) 715/2007 in the version applicable at the time of type approval
The fuel consumption and CO2 emission figures refer to the WLTP cycle.
WLTP: NEW TESTS FOR THE CERTIFICATION OF FUEL CONSUMPTION, CO₂ AND POLLUTANT EMISSIONS IN EUROPE
In order to be placed on the market, passenger cars carry out a series of tests to verify their compliance with regulations. The tests to assess fuel consumption, CO2 and pollutant emissions are carried out in the laboratory and are based on specific driving cycles. In this way, the tests are reproducible and the results comparable. This is important because only a laboratory test, which follows a standardized and repeatable procedure, allows consumers to compare different car models.
On 1 September 2017, the new Worldwide harmonised Light-duty vehicle Test Procedure (WLTP) came into force in Europe and will gradually replace the New European Driving Cycle (NEDC) protocol.
NEDC (New European Driving Cycle): it has been the European driving cycle used so far for the measurement of fuel consumption and emissions from passenger cars and light commercial vehicles. The first European driving cycle came into force in 1970 and referred to an urban route. In 1992 it was also considered to have an extra-urban phase and since 1997 it has been used for measuring consumption and CO2 emissions. However, the composition of this cycle is no longer consistent with current driving styles and distances travelled on different types of roads. The average speed of the NEDC is only 34 km/h, accelerations are low and the maximum speed is just 120 km/h.
WLTP procedure: WLTP uses new Worldwide harmonised Light-duty vehicle Test Cycles (WLTC) to measure fuel consumption, CO2 and pollutant emissions from passenger cars and light commercial vehicles. The new protocol aims to provide customers with more realistic data, better reflecting the daily use of the vehicle.
The new WLTP procedure is characterized by a more dynamic driving profile with more significant acceleration. The maximum speed increases from 120 to 131.3 km/h, the average speed is 46.5 km/h and the total cycle time is 30 minutes, 10 minutes more than the previous NEDC. The distance travelled doubles from 11 to 23.25 kilometers. The WLTP test consists of four parts depending on the maximum speed: Low (up to 56.5 km/h), Medium (up to 76.6 km/h), High (up to 97.4 km/h), Extra-high (up to 131.3 km/h). These parts of the cycle simulate urban and suburban driving and driving on extra-urban roads and motorways. The procedure also takes into account all vehicle’s optional contents that affect aerodynamics, rolling resistance and vehicle mass, resulting in a CO2 value that reflects the characteristics of the single vehicle.
Comparison NEDC vs WLTP
|Cycle time||20 minutes||30 minutes|
|Distance||11 km||23,25 km|
|Maximum speed||120 km/h||131,3 km/h|
|Average speed||34 km/h||46,5 km/h|
|Driving phases||2 phases||4 more dynamic phases|
|Influence of optional equipment||Not considered||Additional features (which can differ per car) are taken into account|
|Gear shifts||Fixed gear shift points||Different gear shift points for each vehicle|
THE TRANSITION FROM NEDC TO WLTP
The WLTP procedure will gradually replace the NEDC procedure. The WLTP applies to new passenger car models from 1 September 2017, to all passenger cars registered from 1 September 2018 and is mandatory for all EU Member States.
Until the end of 2020, both fuel consumption and CO2 emission values in WLTP and NEDC will be present in the vehicle documents. Indeed, NEDC values will be used to assess the average CO2 emissions of cars registered in the EU throughout 2020. In addition, some countries may continue to use the NEDC data for fiscal purposes. From 2021 onwards, WLTP data will be the only consumption/CO2 emissions values for all cars. Used vehicles will not be affected by this step and will maintain their certified NEDC values.
Road consumption and emissions of passenger cars
The new WLTP test procedure is more representative of current driving conditions than the NEDC procedure, but it cannot take into account all possible cases including the effect of the driving style that is specific to each individual driver.
Therefore, there will still be a difference between emissions and consumption measured in the laboratory and those resulting from the use of the vehicle in the real world, and the extent of this difference will depend on factors such as driving behavior, the use of on-board systems (e. g. air conditioning), traffic and weather conditions that are characteristic of each geographical area and each driver.
For this reason, only a standardized laboratory test allows to obtain values with which it is possible to compare vehicles and different models in a fair way.
What changes for customers
The new WLTP procedure will provide a more realistic criterion for comparing the fuel consumption and CO2 emission values of different vehicle models as it has been designed to better reflect real driving behavior and take into account the specific technical characteristics of the individual model and version, including optional equipment.