I have a '99 Plus8 and the battery is fine at the moment, but when it is time to change it I'll be buying an Optima Red Top. Why ?? I bought an Austin Healey 3000 in from the States last year and they need some grunt to start them. The car had stood un-charged or started for 12 months. Started perfectly to get it to the docks but then took over 4 months to get to the UK. On arrival the battery had no problem starting it straight out of the container and it hasn't needed charging since. They are popular in the US but I have never seen a battery as good as this, it's as if one is plugged into the mains ! I know they are expensive, but if there is one that fits the battery tray, I wouldn't hesitate to buy one. No connection with Optima, just very satisfied.