Nonetheless, it's still a handy thing to have, and as you'd expect, it charges the iPod from the lighter socket in the car.
My IPOD came with a USB cable (that doubles as an electricity-socket-based charger) but not a firewire cable. The Logic3 Car Charger for IPOD takes the same USB idea from Apple, but uses a firewire cable that slots into a car-charger adapter.
I use the firewire cable in the PC and keep the car-charing adapter in the car, taking along my IPOD and cable if I need to charge the IPOD along a journey.
Very pleased.