ENEOS 1006 km race formerly known as "Horn Grand Prix", "TV3 1003 kilometrų lenktynės" and "Omnitel 1000 km lenktynės" for sponsorship reasons is a touring car and GT endurance racing event held annually in Lithuania, at Palanga circuit , two kilometers away from the resort town of Palanga. The race was first held in 2000.
Known as "Horn Grand Prix", nowadays race was first held in 2000. A total of 18 teams entered the race. It was won by Vytautas Venskūnas, Vladas Laurinavičius and Eugenijus Tumalevičius. In 2004, the number of participants increased to 34, in 2005 to 37. In the same year the race distance was increased to 1003 km to honour new title sponsor TV3, and the race was renamed to TV3 "1003 kilometrų lenktynės".
The number of participants continued to increase in the following year as the race was officially included in the list of FIA sanctioned events and the race began to attract teams and race drivers from other countries. In 2006 41 teams entered the race and in 2007 the number of participants increased to maximum 60.
In 2008 total 75 teams submitted their entries, but only 60 entered the race, as other teams, who failed to qualify, had to compete in support 100 laps race. A new title sponsor was introduced in 2008, as Omnitel replaced TV3. Therefore, the race reverted to its original 1000 km format. Omnitel pulled off its support before 2013 edition of the race, and the race became known simply as "1000 kilometrų lenktynės", until ENEOS became a title sponsor in 2015.