Enduro Double Down Challenges

Enduro Challenges is a special series of event available starting with the Enduro Update. The announcement made by Gameloft - ''Prove you can withstand till the very end in an ever-changing, tough, daring challenge. Double or nothing is the way to go! Risk your progress in order to win BIG!'' - sets that it is somehow similar to the Research & Development events with a series of test to complete.

Enduro Challenges Introduction

 * Exclusive Challenge
 * Challenges for the best drivers in Asphalt 8.
 * Enduro Double Down will test your skills to the limits. Try it an get the next top car in the game for free!


 * Rewards
 * By scoring in events, you can unlock various rewards. The top score grants you Asphalt 8's next big thing, the Weber Faster One.


 * Cars Involved
 * Besides the Weber Faster One, there are 8 more cars used in the Enduro Double Down challenges. You can ride them for free in the EDD! All applied upgrades will be kept for when you own the car.


 * Random Challenges
 * In Enduro Double Down, you can choose from randomly-picked challenges on different tracks and driving different cars. Each try will be different from the first.


 * Ace Race
 * Complete challenges to get Enduro Points. Beat the Ace Racer at the end of each Tier to save your score.


 * Invitation
 * If you fail, your run will end an you can start over from challenge 1. Each start requires you to spend Enduro Invitations.


 * Take a Risk -- Get Rewards!
 * If you succeed, you will have the chance to save your points or take a risk and apply a boost for even more points in upcoming Challenges.

Enduro Points
The basic principle of Enduro Double Down Challenges (EDD) is that you have to collect Enduro Points (EP). To get the Weber Faster One, you will need to earn 75.000 EP.

Each race you win will earn you an (increasing) amount of EP. These points are not yet safe, they will only be definitely yours once you reach the end of a Tier, called Ace Race. The length of a Tier seems to be variable, however the first Tier is 7 races.

When you lose a race, you start over. When you have played safe after the last Ace Race, the points from the last Ace Race will be safe, same as double down. When you played double, you will lose all your points and start over.

The amount of EP you can earn will increase with each race by a minimum of 10, starting with 100 for the first race:

Enduro Cars
The cars used in the races, other than the Weber Faster One, are the following:
 * SRT 2013 Dodge Challenger SRT8
 * Jaguar F-Type R
 * Nissan Skyline GT-R (R34)
 * Honda Integra Type-R
 * Nissan GT-R NISMO *
 * Lamborghini Aventador LP 700-4 *
 * W Motors Lykan HyperSport *
 * Chrysler ME412 *
 * Jaguar C-X75 *

* The cars with a star will only appear after a certain time of playing the EDD.

In the perimeter of the EDD, you are free to drive and upgrade these cars. If you will acquire these cars at some point, the upgrades will be preserved.

Rewards
Along the way to acquire the Weber Faster One, you will receive some goodies to reward you. These depend on the EP you've acquired and successfully saved:

In total, the EDD Event rewards you with (even though the in-game ad promises ), 42 Pro Cards and 3 Cars worth , , and last but not least the Weber Faster One which is currently ranking top 9 of Class S cars (for comparison, #10 costs , and #11 costs ).
 * 350 EP – ,
 * 1,000 EP –
 * 2,5000 EP –
 * 5,000 EP –, Enduro Double Down Rookie Box
 * 7,500 EP –
 * 10,000 EP – SRT 2013 Dodge Challenger SRT8 - or -
 * 15,000 EP –
 * 20,000 EP –
 * 25,000 EP –, Enduro Double Down 12 cards Box
 * 30,000 EP –
 * 40,000 EP – Nissan Skyline GT-R (R34)
 * 50,000 EP –
 * 60,000 EP –, Enduro Double Down 24 cards Box
 * 75,000 EP – Weber Faster One

Analysis
If you suppose that you will not get further than race 14, which happens to be a safe point, you will earn 3010 EP in 14 races. In order to get 75'000 EP, you will need to play 25*14=349 races, using 25 Enduro Invitations, taking up a little more that 8 days to deliver (1 Invitation being delivered per 8 hours), with the Event duration of 8d being just not sufficiently long. Since you know how to get to race 14, you can play it double, getting a reward of 5640, reducing the necessary races to 14*14 = 196 races, and playtime being down to 5 days.

Compared to an estimate of minimum of 120, or realistic medium of 180 races of the BMW 3.0 CSL Hommage R&D event, this seems quite comparable. However, there are a lot less constraints than with the R&D Event; you do not need to fully upgrade nor the Weber Faster One nor the other cars in order to gain EP, and you can earn the SRT 2013 Dodge Challenger SRT8 and the Nissan Skyline GT-R (R34) along the way. Still, the higher you upgrade them, the higher you get before losing a race and starting over. Also the time constraint is less harsh with this event, since you can play up to four streaks in a row (the one that you are currently playing, plus 3 pending invitations).

Extrapolation from the numbers from races until race 24 suggest that you can play it safe until the final race 55, and earn close to 70,000 EP. However this would need you to MAX+PRO the Weber Faster One, since the Ace Race is expected to be very difficult.

On the other hand, if you go for the double every time, you might reach 75,000 EP around race 46. However this would require a perfect win streak, and proably race 46 is not an Ace Race.

A middle way would be to play double until race 19 for 8 times, earning you each time 9,920 EP. This can be achieved using a Weber with MAX 3-4-0-2 and PRO 0-0-1-2 and Nitro Starter & Tuning Kit for Ace Race 14 and 19. However, in order to get the Weber to this level, there is more than needed.

All things considered, the EDD event is a good opportunity to acquire a Class S top performer for a relatively low price, even if you have to spend for lost races.