I bought mine at Carmax, got the extended warranty (LR) from them (Phillips), and it provides for a rental (up to $50/day for 6 days) for covered repairs. Which is why they give you the LR loaner then charge LR corp. for the $50/day. I would have gotten the loaner yesterday, if i had purchased it before turning the car in for service (it was 7:30am when I dropped it off and the Finance Manager wasn't in).
I got Exclusionary coverage, and there is basically, almost nothing that is not covered having read through it (inc. fluids and other wear out items if part of another repair & all the factory installed electronics- GPS & Nav) which weren't in my MB Factory ex-warranty. It also provides road hazard coverage on tires (prorated for wear at time with $0 deduct). Its the LR Assured program the advertise on their website in the warranty part for Certified Pre-Owned.
It can also be transfered if you sell to private individual or company (Mb had to be private only) or cashed out (remaining term) even if the vehicle is declared a complete loss (insurance wise).
The finance manager worked straight out of the LR book so I know he didn't mark it up any (confirms the call I had with LR USA). To be eligible (and you're not the original owner) you have to have 12 months and 12,000 miles left on the original warranty. Even so you have to get inspected and an oil change (since I was there for the 30,000 it didn't matter).
You can get different deductibles, but the pricing pushes towards the $100 (extra $1400 for $0 and only $400 less for a $200 deductible) per visit, so wait for a couple of things if possible.
He priced two versions for me, both are from date of initial entry into service (delivery date to original owner):
7yr/ 85,000mi for $3824 (not positive about the tens and ones place values)
7yr/ 100,000mi for $4,094.88
They also offer one through a third party, AUL which had $0 deductible, had equivalent terms and was a couple hundred cheaper. Not sure about how extensive their items covered was compared, but it handled the major mechanical components. I felt more secure in going with the corporate one as I've had other dealer (different states) ask about who the extended warranty was with and they visible changed expressions

when I said the manufacture vs a 3rd party (this was with MB).
Jay Brain, Finance Manager, was open, relaxed and straight forward about it all.