Also, does iRacing ever run special (discounts) for certain cars and tracks?
Negative, but when you buy things in bundles of 3 & 6 I believe?
You get a discount.
I can't remember the amount of purchased content, but after a certain amount you get a discount on all purchases.
40=20%
All content =30%
On occasion they also do a iracing $ discount...buy $75 and receive $100 iracing dollars which you can use towards either content or renewing your subscription.
The key to staying ahead is.....
When they have a credit sale pay $75 for $100, compete in 2 series a season and get $10 in participation x 4 seasons a yr =$40
And I may be mistaken but I think there is a $5 credit for having a subscription for a full yr.
Total= $145 in your bank and save those credits to put towards a subscription sale.
Sometimes it's 50%, this yr it was 30% off =$72 for 1 yr
-$45 participation credits
=$27 for your next 1 yr subscription
Leaving you with $70+ credits left to purchase content with.
To keep the cost low, work your way out of rookie class than find a popular series that interest you. Buy the vehicle and tracks needed for the season in bundles to receive a discount (you only need to complete 8 of 12 weeks to get a participation credit for that season) and run a 2nd series using base content to get the most participation credits for that season.
The key is to participate as much as possible to keep the cost down.
There use to be a lot free 3 month trials out there to give new comers more than enough time to see if it is for them or not, but I am not aware of any at the moment.
Hope that ramble made sense
As for open wheelers the Skippy is a very popular series.
Rookie and a C class series, there is also the pro Mazda and some f3s