Board Thread:Game Discussion/@comment-2600:1004:B100:9807:F1B0:12B9:E961:D319-20180516125102/@comment-26829117-20180516145606

I guess it depends on how much time you have over the next few days.
 * 295 for Porsche 911 RSR (2017)
 * 281 for NISSAN R390 GT1
 * Perseverance last entry on 25th May

However, you don't need to spend it all at the start of these events. You could apply the upgrades to the Porsche gradually as you progress in the SE and you can do the same with the Nissan. You will need to farm intensely to get the additional 476 but it is doable. You could also get 20 from ads and don't forget the daily bonuses. You also don't need to start Perseverance straightaway and the first few days will be doable on R$ only upgrades. You can also wait a few days once gold upgrades are required, gather the gold and then run more than one stage in a day. It won't be easy but it could be done.