In addition to the diffuser in her bathroom, she sometimes lights a candle there as well.
If the diffuser decision should go against the team, then some of that superiority might dissolve.
The new development uses exhaust gases to move the airflow around the diffuser and rear beam wing more effectively.
The British team lodged a protest against the diffuser design used by Toyota, Williams and Brawn GP yet do not want to risk falling behind rivals.
However, modifying the Adrian Newey-designed Red Bull around the new diffuser could take several weeks.
He says: 'The two major technologies - the F-duct and the blown diffuser - we are still not completely there with.
Yet Horner believes the team can significantly improve their performance by incorporating the new diffuser, which is thought to add up to half a second in pace.
Both drivers were looking to benefit from a major overhaul of the Toro Rosso as the team ran with the new diffuser, front wing, nose and top bodywork that has served sister team Red Bull so well since Silverstone.
Ferrari have brought a new front wing to Germany, which is designed to work in tandem with the exhaust-blown diffuser they introduced at the European Grand Prix in Valencia a month ago.
For another, the Brawn appears particularly strong on slow corners, where the benefits of a diffuser - which creates downforce by accelerating the airflow under the car and effectively sucking it to the road - would not be as great as on faster corners.
"If you don't have aerodynamic features - like the F-duct or the exhaust blown diffuser - then you want to implement them, so you develop them at home, build them on to the car and test them on the race weekend, " explained Schumacher, who was used to unlimited testing in his previous Formula 1 career.
Whether Red Bull pursues the split-level diffuser rests on that appeal.
Before Toyota were demoted to the back of the grid in Melbourne for running with an illegal rear wing, six of the top eight cars in qualifying ran with the split-level diffuser.
Red Bull are running with a new 'double' diffuser in the Principality while championship leaders Brawn also have a series of modifications, including a new rear wing configuration, changes to the car's suspension and a reconfigured chassis to suit the tight, twisty track.
Last season, Button and the Brawn GP team, helped by their revolutionary rear diffuser, won six of the first seven races, but experts are predicting a much closer tussle this year.
Brawn dominated the start of the season, with Button winning six of the first seven races, and they found themselves caught in a controversy over the design of their car's rear diffuser, which several rivals said contravened the rules.
At Valencia the team's new blown diffuser was introduced and two weeks later at Silverstone came a totally new front wing - the one that was causing such suspicion at Hockenheim.
His driving style was not suited to the off-throttle blown diffuser, which Vettel used to such devastating effect en route to 11 wins in a truly dominant season.
The Red Bull is the only car to incorporate a pull-rod rear suspension, which is incorporated into their gearbox design and means there is little room at the back of the car to add a split-level diffuser.
It also looked surprisingly cool, thanks in part to the re-designed front fascia, an angled rear diffuser, a slight spoiler and 18-inch R-Design wheels.
For one thing, it does not explain the car's superiority over the Toyota and Williams, both of which have a similar diffuser.
The exterior also utilizes a flat underbody (including a large front flat floor cover, electric motor area undercover, front undercover and rear diffuser with fins) to help manage airflow under the vehicle.
ENGADGET: Nissan starts US production of 2013 Leaf, vows faster charging and a lower entry price
Mercedes will wait until Bahrain to introduce their definitive aerodynamic package - which will include a modified diffuser, a crucial part that defines airflow at the back of the car and has a huge role in producing downforce.
Both Renaults, who seem suited to high downforce tracks, were in the top seven after successfully fitting a new front wing and updated diffuser.
Kovalainen was running with a new diffuser and front wing in Hungary and he was quick to make the most of the updates which gave Hamilton's car a performance gain of about 0.8 seconds a lap in Germany two weeks ago.
The 30-year-old's car was fitted with a new front wing, diffuser, engine cover and exhausts.
McLaren introduced several new parts for the home race of their German engine suppliers and sponsors Mercedes as Hamilton ran with a new front wing, diffuser and top bodywork.
应用推荐