here's my idea:
As a race car driver you start with a selection of low tier JDM's (NO HONDA FIT!!!) and compete on the series of the events until you got your first license: the National B License will grant access to Beginner Events. However, someone just issued a challenge in a Galant and you need to buy a Mitsubishi (recommends Evos) and race him on Matterhorn
Then after beating him, the License Test for National A is available. but, it requires you to win 15 out of 20 Beginner Events, after 5 events were won, Mission Races was available and accessible. Beginner Mission Races Featured "The Pass" Missions. After 10 Events Won, Coffee Breaks were available and accessible. these Coffee Breaks feature knocking down the cones and an Eco Challenge of 10 laps around Silverstone The Stowe Circuit in a BMW M4 chasing a Prius Touring Car and win with less fuel consumption by following the Prius. After 15 events have won, it's time for taking a License Test... after completing all of the tests, you recieved your second license: the National A License will grant access to Amateur Events. Again, however, another challenger has sent you a challenge message, this time by Koopa Troopa and challenges you in any car with 600 PP or Less and race him on SSR11
after defeating him, win 20 out of 25 races to unlock the International B License Tests. And also, Showdown Mode is unlocked, it feature various showdowns from various fanfics and mangas and animes.
win 15 out of 25 events then One Make Races unlocked. it features cups that restrict a make for the race... win 20 out of 25 events to take part in the International B License Tests... After completing all of the tests, you recieved your third License: the International B License granted you an access to Professional Events. However, Again..., a challenger issued a challenge, by Larry Koopa this time... in a car with 650 PP or Less and race him on wet SSR5
after defeating him, Mario series was unlocked in Showdown Mode. win 25 out of 30 Events to unlock the GT All-Stars Championship. Win 20 out of 30 Events to unlock a Gymkhana Mode and Ken Block's Ford Fiesta...
After winning the GT All-Stars Championship, it's time to take part the International A License tests... after completing all the tests, you recieved your fourth license: the International A license grants you access to Expert Events. a challenger is approaching! this time by an RX7 Driver and urges you to buy a Mazda RX7 and race him on wet SSR11
after defeating him, win 30 out of 35 events to unlock the GT World Championship... win 25 out of 35 events to recieve the Mercedes F1 W05 Hybrid '14. After completing the GT World Championship, it's time to tackle these time trials! After completing the tests, you finally recieved your fifth and the final license: the Super License grants you access to Extreme Events.
win 15 out of 20 Extreme races to unlock the FIA WEC Qualifier. after completing the Qualifier, you can access to the Endurance Events, however, a final challenge took place on Suzuka Circuit 2014, this time a mini endurance called Suzuka 2014 10 Lap Challenge
after winning the mini endurance, the endurance races are now available...
win 10 out of 15 endurance races to unlock Motegi 24 Hours. win 13 out of 15 races to unlock 24 Hours of Le Mans. win the 24 Hours of Le Mans to unlock 24 Hours Of Nurburgring...
so, that's my idea...