Loeb started the 2008 season with a record fifth win in Monte Carlo.
On the second rally of the year, 2008 Swedish Rally, he crashed out during day one.
Although he re-joined the rally to collect manufacturers' points, the team later decided to retire him due to a damaged engine.
After winning in Mexico and Argentina, Loeb had a crash with Conrad Rautenbach on a road section in Jordan, from which he could only recover to take tenth place in the rally.
He went on to win two events, and then finish close third to the Ford factory team duo Mikko Hirvonen and Jari-Matti Latvala at the Rally of Turkey.

Loeb later notably won the Rally Finland ahead of Hirvonen.
This was the fourth time in the event's 58-year history that a non-Nordic driver won the rally, after Carlos Sainz in 1990, Didier Auriol in 1992 and Markko Märtin in 2003.
This started a string of five victories for Loeb.
In Germany, New Zealand and Spain, Citroën also took double wins as his teammate Dani Sordo took three runner-up spots in a row.

Going into the penultimate round of the season, the 2008 Rally Japan, Loeb led Hirvonen by 14 points and needed a third place to secure the world drivers' title.
Finishing behind Ford's Hirvonen and Latvala, Loeb broke Juha Kankkunen's, Tommi Mäkinen's and his own record of four titles and became the first five-time world champion in rallying.

After clinching the World Rally Championship, Loeb edged out Latvala to take his first Wales Rally GB win, a feat which also helped secure his team their first manufacturers' title since 2005, from 2006 and 2007 victors Ford.
In December, Loeb won the individual 2008 Race of Champions, becoming the second driver after compatriot Auriol to win the event more than twice.
Loeb started the 2008 season with a record fifth win in Monte Carlo. On the second rally of the year, 2008 Swedish Rally, he crashed out during day one. Although he re-joined the rally to collect manufacturers' points, the team later decided to retire him due to a damaged engine. After winning in Mexico and Argentina, Loeb had a crash with Conrad Rautenbach on a road section in Jordan, from which he could only recover to take tenth place in the rally. He went on to win two events, and then finish close third to the Ford factory team duo Mikko Hirvonen and Jari-Matti Latvala at the Rally of Turkey.
Loeb later notably won the Rally Finland ahead of Hirvonen. This was the fourth time in the event's 58-year history that a non-Nordic driver won the rally, after Carlos Sainz in 1990, Didier Auriol in 1992 and Markko Märtin in 2003. This started a string of five victories for Loeb. In Germany, New Zealand and Spain, Citroën also took double wins as his teammate Dani Sordo took three runner-up spots in a row.
Going into the penultimate round of the season, the 2008 Rally Japan, Loeb led Hirvonen by 14 points and needed a third place to secure the world drivers' title. Finishing behind Ford's Hirvonen and Latvala, Loeb broke Juha Kankkunen's, Tommi Mäkinen's and his own record of four titles and became the first five-time world champion in rallying.
After clinching the World Rally Championship, Loeb edged out Latvala to take his first Wales Rally GB win, a feat which also helped secure his team their first manufacturers' title since 2005, from 2006 and 2007 victors Ford. In December, Loeb won the individual 2008 Race of Champions, becoming the second driver after compatriot Auriol to win the event more than twice.
Sébastien Loeb