I note people saying a "sizeable reduction" should be obtained for the cost of any extended warranty. For all the vehicles I've purchased in the past (except Mercedes, despite my so-called "tough negotiating"), I have managed to get a good discount. But with the C8 and for the longest available GM extended warranty period (going up to 7 years, from the initial 3 years) I was only offered a discount of less than 10% and the dealer wouldn't budge from there. To be fair, I don't have the car yet and the dealer said when it arrives, they might provide a better discount. In response to my comment that there was more room to move and the dealer had a fairly sizeable profit, I was told "the mark-up isn't as much as you think". Does anyone know approximately what the mark-up is or whether there's a standard discount that most people are getting? It strikes me the dealers are doing OK with full MSRP for the 2020's, so they'd have more room to move on the extended warranty. With people now taking delivery of their C8's, pricing for the extended warranty should be known. I hope this is an appropriate discussion for the Forum...