I plan polishing my modeling skills so plan to go through this tutorial.
http://www.3dm3.com/tutorials/maya/350z/

Reference Resources
http://www.cg-cars.com/

http://www.netcarshow.com/bmw/2008-1-series_coupe/

http://www.the-blueprints.com/index.php?blueprints/cars/bmwcars/25245/view/bmw_1_series_coupe_2008/