The E6 is a highway in Norway and Sweden, generally running in the north-south direction. It is introduced to the Euro Truck Simulator 2 map in the Scandinavia DLC.
The game map features the southern portion of the route between Oslo and Trelleborg, including two tolled sections near the Norwegian-Swedish border, as well as the Svinesund and Uddevalla bridges. Between Malmö and Göteborg the route multiplexes with the E20.
Almost the entire route featured in the game is dual carriageway with 2 lanes each way. An extra lane is available at every junction turn-off. The speed limit for trucks is generally 80km/h (50mph).
There is a sign at the intersection of the Oslo underwater tunnel, pointing north to Trondheim. It's one of the biggest cities on the E6 and will likely be added in the Nordic Horizons DLC (also hinting the continuation of the E6 to Kirkenes in northern Norway).