We bought a 2006 Subaru in 2007 for cash - but still had to run the extended warranty gauntlet:

Finance Guy: Let's talk financing
Me. No - I will write a check.
Finance Guy: We will need a cashier's check, but if you finance the car you can take it today.
Me. Never mind - we'll go to the other dealer
Finance Guy; Ummm - let me check with my manager.

Manager: OK, we'll accept your check, let's talk about the extended warranty.
Me: Why? Is this 2006 not any good? Won't it last 200K like the 1994 I have parked out front?
Manager: Oh no, no, no - Subaru makes wonderful cars - they never break down.
Me: OK - so I don't need a warranty - just tell me how much I should write the check out for.

etc...

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1984 300TD