When you reach one hundred years in any business, it’s most definitely a cause for celebration. In the automotive industry, there are but a few manufacturers that have lived to see 100 years, with Bugatti, Mercedes Benz, Fiat, and General Motors among those that that have been fortunate enough to make it this long.

Joining these manufacturers in this illustrious list is Audi, and as expected, it's making its 100th year anniversary something worth remembering.

Audi is leaving no stones unturned in celebrating this remarkable feat of long lasting consistency. It has already commissioned a commemorative watch called the Tachoscope, and is now in the process of incorporating a special equipment package for all of its European released vehicles.

The list of Audi cars that come with this unique package include the A3, the A3 Cabriolet, the A4, the A6, the TT, the A5 Coupe, the Q5, and the Q7.

The question now begs, what exactly is this package?

Continued after the jump

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Taking from its reputation as one of the most freethinking manufacturers in the world, Audi is including a three-spoke leather steering wheel, unique alloy wheels, xenon headlights, and LED daytime running lights with high-beam assist.

Naturally, these cars are only being made available as part of Audi’s 100-year celebration. And the special features don’t end there, either.

Audi is also including a number of exclusive options as part of its 100-year package. Customers can put a number of wide-ranging features on their Audis including a special Daytona pearl exterior color, sport seats, tinted moonroof, and a unique door sill design featuring a backlight silhouette of Audi’s world-famous 16-cylinder Type C racing car.

On any normal circumstance, consumers who’d want these add-ons on their Audis would have to pay a lump sum just to have these features set up. But since this is part of Audi’s centennial anniversary, prices of these included options could be cut back by as much as 40% with the price tag for anybody who might want to have these features put up on their Audis paying around $2,300 to $9,400.

For its part – or maybe it just doesn’t want to spoil the surprise – Audi has been tight lipped about what these added features would look like I an Audi. The only form of evidence that has been released is the Type C-themed door sill that, for all intents and purposes, looks as sleek and sexy as advertised.