The Koenigseeg Agera was officially unveiled in 2010 and now, for the 2013 model year, the Swedish company has already announced a series of eight new updates. The best part is that these changes are not limited to just the exterior of the car. Koenigsegg->ke43 has managed to obtain an extra 20 HP for the standard Agera and 25 HP for the Agera R.

The exterior changes include the world's first hollow, one piece, super light carbon fiber wheel, using a proprietary method developed by Koenigsegg named Aircore Technology. This helps in reducing the total weight by 44 lbs. Koenigsegg has also installed new front/side winglets for the Agera R that provide 20kg/44 lbs more downforce at 155 mph, as well as reduced drag.

The car's engine uses nano-surfaced cylinder sleeves, from ANS, for reduced friction and fuel consumption. Thanks to a new in-house developed engine management system and a rev limiter raised from 7250rpm to 7500rpm, the total output has been increased from 940 to 960 HP for the Agera and from 1,115 to 1,140 HP for the Agera R!

Next to these changes, the company has also installed a unique Triplex suspension - standard on the 2013 Agera R - and a new, lighter rear exhaust section. The KES (Koenigsegg Electronic Stability) is now standard on all Koenigsegg models.

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