^^...agree. The higher stall torque converter on the 4.6iS is common to wear out post 80K miles. It can be costly if neglected as it can wear down the trany.

In terms of reliability in comparison to the 4.8iS, newer doesn't necessarily result in more reliability. The 4.8iS has it's own inherent issues as well. I have friends who have spent more time and/or $$ servicing their 4.8iS than i have on my 03 4.6iS (and vice versa).

I'm on my second 4.6iS and have truly enjoyed it's unrefined sporty personality....next up...///M

I highly recommend an inspection/diagnosis by dealer (only) to confirm it's overall health. If you decide to purchase, i also recommend an aftermarket warranty.