I dont know if anyones played the game this way before, but I always wondered how far one could progress through the game without spending any credits. Its possible to find out hypothetically, but in practice the result would probably be different. I only had one rule to follow NO SPENDING CREDITS. No purchasing cars, no tuning, no new tires, except for road tires which cost nothing. This turned out to be helpful a few times. Some of the races couldnt be won without using shortcuts while others had to be raced dirty. If nothing else, its a good start to a perfect game. Without going into great detail, here are my findings.
B License 19 days 3 cars
A License 19 days 3 cars
IB License 19 days 3 cars
IA License 19 days 3 cars
S License 19 days 3 cars
Driving Missions 39 days 5 cars
7 of 8 Beginner Events 40 days 7 cars
8 of 9 Professional Events 46 days 8 cars
0 of 7 Extreme Events
15 of 16 Endurance Events 30 days 15 cars
5 of 6 Japanese Events 35 days 5 cars
4 of 4 American Events 18 days 4 cars
8 of 11 European Events 43 days 8 cars
12 of 33 Special Condition Events 42 days 12 cars
7 of 21 Japanese Makers Events 40 days 7 cars
2 of 23 European Makers Events 10 days 2 cars
1 of 5 American Makers Events 4 days 1 car
25% Completion 1 day 1 car
Totals 47% Completion 443 days 90 cars
When looked at theoretically, the differences are in the European Events, and Manufacturers Events.
B License 19 days 3 cars
A License 19 days 3 cars
IB License 19 days 3 cars
IA License 19 days 3 cars
S License 19 days 3 cars
Driving Missions 39 days 5 cars
7 of 8 Beginner Events 40 days 7 cars
8 of 9 Professional Events 46 days 8 cars
0 of 7 Extreme Events
15 of 16 Endurance Events 30 days 15 cars
5 of 6 Japanese Events 35 days 5 cars
4 of 4 American Events 18 days 4 cars
11 of 11 European Events 59 days 11 cars
12 of 33 Special Condition Events 42 days 12 cars
7 of 21 Japanese Makers Events 40 days 7 cars
6 of 23 European Makers Events 34 days 6 cars
2 of 5 American Makers Events 10 days 2 cars
25% & 50% Completion 2 days 2 cars
Totals about 54.5% 490 days 99 cars
Events that I couldnt win but could be won theoretically are these ones:
1. Vette! Vette! Vette! The 54 cant keep up.
2. Tous France Championnat The A310 is way underpowered.
3. Euro Hot Hatch League The Lupos slow.
4. Schwarzwald Liga A The Lupos slow again.
5. Renault Alpine Cup I cant handle the A310.
6. Lupo Cup Sport tires v. Race tires
7. 2HP-2CV Cant win the French Championship.
8. M Club Cant win the Schwarzwald Liga A.
I took this minimalist approach one step further by asking what single purchase would most affect overall game completion percentage. The answer was obvious a sport truck. Notable additions are in the 3 levels of experience events. The updated hypothetical results look like this.
B License 19 days 3 cars
A License 19 days 3 cars
IB License 19 days 3 cars
IA License 19 days 3 cars
S License 19 days 3 cars
Driving Missions 39 days 5 cars
8 of 8 Beginner Events 44 days 8 cars
9 of 9 Professional Events 57 days 9 cars
7 of 7 Extreme Events 66 days 7 cars
15 of 16 Endurance Events 30 days 15 cars
5 of 6 Japanese Events 35 days 5 cars
4 of 4 American Events 18 days 4 cars
11 of 11 European Events 59 days 11 cars
12 of 33 Special Condition Events 42 days 12 cars
7 of 21 Japanese Makers Events 40 days 7 cars
6 of 23 European Makers Events 34 days 6 cars
2 of 5 American Makers Events 10 days 2 cars
Other Events 3 days 3 cars
Totals about 66.7% 572 days 109 cars
The 2nd most important purchase would be a set of dirt tires. Updates:
B License 19 days 3 cars
A License 19 days 3 cars
IB License 19 days 3 cars
IA License 19 days 3 cars
S License 19 days 3 cars
Driving Missions 39 days 5 cars
8 of 8 Beginner Events 44 days 8 cars
9 of 9 Professional Events 57 days 9 cars
7 of 7 Extreme Events 66 days 7 cars
15 of 16 Endurance Events 30 days 15 cars
5 of 6 Japanese Events 35 days 5 cars
4 of 4 American Events 18 days 4 cars
11 of 11 European Events 59 days 11 cars
27 of 33 Special Condition Events 87 days 27 cars
8 of 21 Japanese Makers Events 46 days 8 cars
6 of 23 European Makers Events 34 days 6 cars
2 of 5 American Makers Events 10 days 2 cars
Other Events 3 days 3 cars
Totals about 74% 623 days 125 cars
A 3rd: Snow tires.
B License 19 days 3 cars
A License 19 days 3 cars
IB License 19 days 3 cars
IA License 19 days 3 cars
S License 19 days 3 cars
Driving Missions 39 days 5 cars
8 of 8 Beginner Events 44 days 8 cars
9 of 9 Professional Events 57 days 9 cars
7 of 7 Extreme Events 66 days 7 cars
15 of 16 Endurance Events 30 days 15 cars
5 of 6 Japanese Events 35 days 5 cars
4 of 4 American Events 18 days 4 cars
11 of 11 European Events 59 days 11 cars
33 of 33 Special Condition Events 105 days 33 cars
9 of 21 Japanese Makers Events 50 days 9 cars
6 of 23 European Makers Events 34 days 6 cars
2 of 5 American Makers Events 10 days 2 cars
Other Events 3 days 3 cars
Totals about 76% 645 days 132 cars
Im astounded that half the game can be completed without purchasing a thing. Just one purchase increases the completion to 2/3. And two more after that brings it up to ¾ complete. Amazing.