Ok... So now we have 6 cars in nitro that have got that figured out. Eight on the trailer guaranteed- hopefully to make it to the next race if they have the parts and money to do so (let's say we are at this part of the season, and attrition in Vegas was hard...)
Two of the eight left go boom in the lights and now have their second (and possibly last) spares on the car.
Eight cars hit the lanes, six cars make decent passes, but of the four that advance, two are wounded and out of parts...
Your semis are now two singles because the wounded cars come up but are dead at the line... The right parts would have gotten them there, but they are now at their parts/$$ cap and were praying for a miracle. Finalist number one limps through to save parts for the final; finalist number two has a worse time of it and is now a spectator for the finals once they get back to the pits and survey their remaking parts...
Final round guy makes a half-hearted single for the Wally, hoping to keep parts good for the next race...
What a great way to attract the fans, huh?