After about four years of production, the Audi A7->ke1687 is about to receive its first revision. This news is no surprise, considering that in the past few months Aud ->ke14 has revised nearly its entire lineup. Our spy photographers manged to spy the new A7 out doing some test runs in the cold of Sweden.

As you can see in these spy shots this A7 prototype wears lots of camouflage, but we basically know what to expect from Audi. We expect to see the same treatment that we saw applied to the recently launched A8->ke1089, including the new Matrix LED headlights, a modified front and rear bumper, and new graphics on the LED taillights.

Under the hood, the A7 will get more powerful and efficient engines combined with new assistance systems that will make the revised A7 even more attractive.

Expect to see the revised Audi A7 revealed by the end of the year, with sales to begin right in time for the 2015 model year.

Click past the jump to read more about the 2015 Audi A7.

Spy shots

The prototype caught testing today by our spy photographers wears lots of camouflage, but even so it's pretty easy to make out what's hidden under it.

Up front, you can spot the new headlights with a new DRL design, as well as a modified front bumper. The rear will get new graphics on the LED taillights and a new bumper with more integrated exhaust tips.