In previous entry I wrote that the Mazdaspeed3 appear in Need for Speed: Carbon. It turns out that not only in this edition, because the Mazdaspeed3 also appears in the following editions: NFS: Pro Street, NFS: Undercover, and NFS: World .
Quoting NFS Wiki:
"The Mazdaspeed3 has been available since the Beta stage of World. It no longer has a strong acceleration like seen in Undercover and a higher top speed than the Nissan Silvia.
So far, the Mazdaspeed3 has the largest amount of Edition vehicles. The Starter Pack included an orange Mazdaspeed3 with a black top, which had stock performance. The Mr. Bee Pizza Special and Anode Edition vehicles offer slightly better performance than the stock version and can be rented for 80SB.
On September 14, 2011, the T-Mobile Edition became available to World players. To obtain the vehicle, players had to enter the code 'getconnected' in a T-Mobile website. It was free and could be obtained in the Car Dealership. On June 28, 2011, the T-Mobile Edition was removed from the dealership."