this is just to verify PR scores right ?

i find this text at the bottom of the wiki page but only on some cars not all of them so this kinda made me second guess > "they dont mean this is the way to get the real maximum PR of the cars where its posted under right? ..... right ?"

this text:

Note: The only way to capture the PR data properly is as follows:

1. Cloud save
2. Capture and complete one upgrade at a time, from base
3. Pay gold to complete any R$ purchases
4. Check the data and complete the next upgrade, one at a time
5. Capture & complete all R$ upgrades before starting  upgrades
6. Double check the data captured actually equals the R$ upgrade data (Base PR + R$ upgrade data = Max PR w/ R$)
7. Capture the car data for PR Max cash, (PR, Top Speed, Acc., Braking, Cornering, Cost, Parts) - change the device's settings between imperial and metric (Settings > Display > Display Speed: MPH | KPH) for top speed MPH/KPH and braking ft/m, do not use a calculation.
8. Continue to capture the remaining data, as before, one at a time, pay gold to complete R$ upgrades
9. Once all data has been captured double check the data captured actually equals the fully upgraded car data (Base PR + upgrade data = PR Fully upgraded)
10. Once the car is fully upgraded, capture the car data for Max PR w/ , (PR, Top Speed, Acc., Braking, Cornering, Cost, Parts) - change the device's settings between imperial and metric (Settings > Display > Display Speed: MPH | KPH) for top speed MPH/KPH and braking ft/m, do not use a calculation.
11. Cloud restore (to get all the gold back)

It is very time-consuming!