Turbocharging and supercharging share top billing in the new Audi A1 1.4 TFSI S line 185PS, which is available to order this week [in Europe]. The new top-performing A1 derives its impressive performance from a potent combination of the two forced induction methods working sequentially, but nevertheless manages to maintain frugal 47.9mpg economy potential giving CO2 output of just 139g/km.

The compact and lightweight four-valve-per-cylinder 'dual-charged' engine powers the A1 1.4 TFSI 185PS from rest to 62mph in just 6.9 seconds, and on to a 141mph top speed. Under power, the supercharger is the first to exert its influence, intervening at around 1,500rpm to increase thrust. In most cases it then disengages at around 2,400rpm, to be followed from around 3,500rpm by a boost from the turbocharger to hasten progress yet again.

As the supercharger takes care of low-range boost, it has been possible to use a larger turbocharger designed with optimum efficiency in mind, and this is reflected in the impressively strong combined cycle fuel economy and low emissions.

The S tronic seven-speed twin-clutch transmission directs power to the front wheels as standard, and with its ability to perform gear shifts in just a few hundredths of a second perfectly suits the newcomer’s temperament. Its tall seventh gear also reduces fuel consumption.

 

You can't post a pic, or a link, or something?

Like the concept... "Super-Turbo"

 

That was posted on my local club forum without links... I checked wiki and it confirmed it!

http://en.wikipedia.org/wiki/Audi_A1

There's a bunch of videos on youtube about them but not finding any I really like.

you can also google "Audi A1 1.4 TFSI S line 185PS" and get tons of info