These cars are unlocked when you beat the specified racer in a Star Showdown.
Dodge Challenger SRT8 392 (A Class) - Beat Ali Howard
Ferrari 599XX - Beat Darius Flynt
Ford F150 SVT Raptor (B Class) - Beat Ramona Cravache
Lamborghini Diablo SV (A Class) - Beat Duke Maguire
Lexus LF-A (S Class) - Beat Zaki Malik
Nissan GT-R Black Edition (S Class) - Beat Marko Bavan
Saleen S7 (R3 Class) - Beat Hailey Harper
1000 Club Achievements
20 - Ferrari Fan - Earn a Medal in 14 different Ferraris.
20 - Ford Champion - Earn a Medal in 13 different Fords.
20 - Forza Legend - Earn a Medal in 146 different cars!
80 - It's Just Money - Earn a Medal in 14 different cars worth at least 1 million Cr.
20 - Lamborghini Lover - Earn a Medal in 8 different Lamborghinis.
20 - My First Challenge - Earn your first Medal.
10 - Nissan Ninja - Earn a Medal in 7 different Nissans.
20 - Sir Challenge-a-Lot - Earn a Medal in 20 different British cars.
20 - Snake Charmer - Earn a Medal in 3 different Shelbys.
20 - Well Engineered - Earn a Medal in 10 different BMWs.
Rally Expansion Pack Achievements
Covered in Mud and Glory (20) - Win a Horizon Rally.
Flawless Victory (15) - Win a Horizon Rally stage without crashing or using rewind.
Ghostbuster (25) - Win 10 Horizon Rally stages in online multiplayer.
Harder Driving (25) - Win a Rally stage on Hard opponent difficulty without using automatic shifting or the Driving Line.
High Five! (20) - Purchase all five Horizon Rally cars.
Horizon Rally Champion (75) - Become the Horizon Rally Champion.
Mile High Club (10) - Get a total of 1609 metres of air in Horizon Rally events.
Now that's a Special Stage (20) - Complete your first Horizon Rally stage.
Rally Rivals (20) - Complete 5 Horizon Rally events in Rivals mode.
Take her for a Power Slide (20) - Obtain your first Horizon Rally car.
Welcome to Horizon 10 You arrived at Horizon Festival raring to go.
Take Her for a Spin! 15 You bought a car from the Autoshow. Now take her for a spin!
...and across the line! 10 You competed in your first race at Horizon.
First! 20 You won your first race at Horizon.
Born Slippy 10 You've won your first Mixed-Surface or Dirt Race.
WARNING!!! DANGER TO MANIFOLD 15 You've won 10 Street Races. Ali would be proud.
#WINNING! 15 You've dominated 10 Festival Races.
Close Encounters 20 You've challenged and beaten 10 festival racers on the spot.
Lawbreaker 10 You blasted past 5 speed traps and 5 speed zones.
Vendetta 20 You've beaten a Rival time in 10 events.
Been There, Done That! 10 You've fully explored the Horizon Festival Loop.
Rave Paint 10 You created a paintjob and your ride is looking SWEET!
Wheelin' 'n Dealin' 10 You sold something via your Storefront. KERCHING!
May The Forza Be With You 10 You received free cars for being a loyal Forza fan!
One to Watch 10 You're the 200th most popular driver at Horizon.
The Next Big Thing 15 You're the 100th most popular driver at Horizon.
Almost Famous 20 You're the 50th most popular driver at Horizon.
Killer Skills 25 You're the 10th most popular driver at Horizon.
Notorious 30 You're the most popular driver at Horizon.
A Wristed Development 20 You received your Yellow Wristband.
Going Green 25 You received your Green Wristband.
Out of the Blue 30 You received your Blue Wristband.
Racing for Pinks 35 You received your Pink Wristband.
Freshly Squeezed 40 You received your Orange Wristband.
Purple Reign 45 You received your Purple Wristband.
Golden Boy 50 You received the Golden Wristband.
Darius Who? 100 You owned Darius Flynt and became the Horizon Festival champion.
Hard Driving 10 You finished in first place on HARD? Nice.
Gettin' It Done 30 You rocked every single Festival Event.
Win Diesel 30 You cruised past the competition and won every Street Race.
Exhibitionist 20 You've won every Showcase Event in the game.
Domination! 10 You've sent every Horizon Star packin'.
All Your Race Are Belong to Us 30 You've won every single race in the game!
Stuntman 25 You've completed every Horizon Outpost PR Stunt.
Kudos to You 10 You've completed 5 Sponsorship challenges.
Sellout 20 20 Sponsorship Challenges? Now you're popular and rich!
Barn This Way 5 You found your first barn find.
Bargain Shopper 10 You bagged yourself a nice discount.
Black Friday 20 Never pay for an upgrade again!
Road Trip 25 You've driven along every road in the entire game.
Still a Noob... 10 10 online races complete… not bad!
Noob No More 20 25 online races complete… awesome!
Playground Games 5 You completed each of the Playground game types. How fun was that?
Swings and Roundabouts 20 You've completed 3 of each Playground game types.
Cruise Club 20 You've completed 10 free roam challenges online.
Ding! 5 You got to Level 5 online.
Just Me and the XP 10 You've reached level 25 online. Did you win a car yet?
OMG 5 You won your first car online.
ZOMG! 10 You've won 3 cars online.
OMGWT*BBQ!? 20 You got seriously lucky and won 5 cars online.