Sebastien Loeb set the pace for Citroen in the first official test of this year's World Touring Car Championship at Valencia.
The nine-time World Rally champion went comfortably fastest in his C-Elysee, ahead of Honda duo Gabriele Tarquini and Tiago Monteiro.
The Italian veteran was using Honda's test Civic, with Monteiro driving the first of the Japanese firm's upgraded race cars.
Tom Chilton and Hugo Valente were also present at the test, driving RML-built Chevrolet Cruzes for ROAL Motorsport and Campos respectively.
A rear wing mounting problem, which was quickly modified, was the only issue the cars suffered on their first significant test of the season.
"The car was reliable, which is very positive for its first test," Valente said.
"I am also pleased with the pace we have shown, we were only a few tenths behind the two Honda cars."
ONYX WITHDRAWS ON EVE OF SEASON
Organisers revealed that Onyx Racing has been forced to abandon its plans to enter the championship this year.
Mike Earle announced he had reformed the ex-Formula 1 team with the aim of embarking upon a five-year project in the WTCC in January.
The team's withdrawal means 22 cars will contest the full 2014 season.
Sixteen of those entries are in the newly-formed TC1 class. Alongside six Chevrolets - for ROAL, Campos and Munnich - Honda will field four Civics, while Lada and Citroen will both run three full-time entries.
Six cars, from Engstler, Campos and Nika, will compete in TC2.
2014 WTCC line-up:
Team Car Driver(s)
Honda (JAS) Honda Civic WTCC Gabriele Tarquini/Tiago Monteiro
Citroen Citroen C-Elysee S Loeb/Y Muller/JM Lopez
Lada (SMP) Lada Granta R Huff/J Thompson/M Kozlovskiy
Zengo Motorsport Honda Civic WTCC Norbert Michelisz
Proteam Motorsport Honda Civic WTCC Mehdi Bennani
ROAL Motorsport Chevrolet Cruze Tom Coronel/Tom Chilton
Campos Chevrolet Cruze H Valente/D Borkovic
Munnich Motorsport Chevrolet Cruze G Morbidelli/Rene Munnich
Engstler BMW 320 Franz Engstler/tba*
Nika Racing Chevrolet Cruze tba*
Campos Seat Leon John Filippi/tba/tba*
* TC2 entries