Sebastien Loeb led Citroen to a 1-2-3-4 clean sweep in Bulgaria
Loeb, the reigning world champion from France, finished 29.5 seconds ahead of team mate Dani Sordo, followed by Peter Solberg and Sebastien Ogier on the asphalt tarmac surface at the inaugral rally.
"A perfect rally," said Loeb. "Four Citroens on front, it's remarkable. The first day was beautiful, the second good and the third calm. I was confident from the outset. Once I pulled ahead it was a question of holding the lead.
"I feared the damp here and in the end it wasn't too bad. I was pleasantly surprised. Since 2006 we haven't lost a rally on asphalt."
It was the fourth win out of seven events this season for six-time champion Loeb, who now leads the 2010 drivers' standings with a 51-point advantage on Ogier.
Sunday's final four stages were dominated by the fight for second between Solberg, at the wheel of a privately-entered Citroen, and Sordo.
Solberg was quickest in stages 11 and 13 but that was not enough to overturn the 4.7-second overnight deficit on Sordo who took stage 12, with Ogier taking stage 14.