The new Mustang convertible's chassis is more than twice as rigid as the 2004 Mustang convertible's chassis.

Read this great article

http://www.motorsportscenter.com/article_462.shtml

http://www.motorsportscenter.com/uploads/05mustang_chassis.jpg

The 2005 Mustang GT's 4.6 liter V-8 weighs 75 pounds less than the previous Mustang GT's 4.6 liter V-8 thanks to an aluminum block instead of an iron block.

http://www.theraceforum.com/images/forum/2570-10-1.jpg

http://www.theraceforum.com/images/forum/2570-10-2.jpg

http://www.theraceforum.com/images/forum/2570-10-3.jpg

http://bradbarnett.net/mustangs/timeline/05/05/Vert-5.jpg

http://www.motorsportscenter.com/uploads/must_cont_rear_a_copy.jpg

http://www.motorsportscenter.com/uploads/must_cont_frnt_copy.jpg

The new Mustang is raced in Grand-Am Cup.

check here

http://www.grandamerican.com/

and here

http://www.multimaticmotorsports.com/mustang/index.html

It has already won three out of the first four races this season against Porsche 911s and BMW M3s. It has a 5.0 liter DOHC crate engine.

http://www.motorsport.com/photos/grandcup/2005/dt/grandcup-2005-dt-jt-0108.jpg

http://www.motorsport.com/photos/grandcup/2005/dt/grandcup-2005-dt-jt-0109.jpg

http://www.motorsport.com/photos/grandcup/2005/dt/grandcup-2005-dt-jt-0119.jpg

The above Mustang was painted to match Parnelli Jones' 1970 Trans Am racer.

http://bradbarnett.net/mustangs/timeline/69-70/70/ParnelliJones.jpg

http://bradbarnett.net/mustangs/timeline/69-70/70/TransAm.jpg

http://bradbarnett.net/mustangs/shows/sema04/SEMA-38.jpg

I really like the side window of the new Mustang.

http://fast-autos.net/features/04sema/ford/73.jpg

http://grand-am.com/CONTENT/Photos/Gallery/2005/05CALcupS800-04.jpg

http://bradbarnett.net/mustangs/timeline/05/05/GrandAm-EK-14.jpg

http://bradbarnett.net/mustangs/timeline/05/05/GrandAm-EK-15.jpg

http://bradbarnett.net/mustangs/timeline/05/05/California-7.jpg

http://motorsport.com/photos/grandcup/2005/ls/grandcup-2005-ls-tc-0162.jpg