If any readers are seriously considering buying a Hybrid electric Fiat. my strong advice would be don't bother. I have just par exchanged my Mercedes Benz E300 diesel hybrid againt a Fiat 500 105 bhp twinair. Am I mad, you're probably thinking. Teue the Mercedes was a lovely car to drive. the most comfortable car I've ever owned. However, there have been well documented problems problems with the hybrid system on these cars. With owners being quoted between £12,000 and £20,000 for a replacement hybrid battery. Mercedes UK, or the dealer network just don't want to know, and the issues are now well known in the motor trade, so the cars are difficult to sell or even part exchange. I must sress that the system is what is now known as a 'mild hybrid', with the battery only assisting the diesel engine during accelleration. This makes the car quite quick for such a large vehicle (0 to 60 in 7.5 seconds) My car had bever given any problems, and when I purchased it, I imagined that if there was a problem with the hybrid 'assistance', the car would just continue driving as a conventional diesel. How wrong i was! Mercedes have inegrated thw system in such a way, that the vehicle will not drive, or even move off the drive if the hybrid system, or battery fails. I've discussed the issue with a couple of UK based elecrric vehicle specialists. Who have told me that the hybrid battery is not very big in the Mercedes, and should cost a fraction of the prices Mercedes are quoting. Unfortunately Mercedes will not supply independent specialists with any parts or data, and have even written a programme into the vehicles electronic management systems that shuts down the electronics if anyone, other than Mercedes tries to work on it. The specialists told me that this is in direct contrast to the batteries in Toyota's & Lexus vehicles, which are much larger, given their ability to propel the vehicle on battery power only. despite this, the batteries are far cheaper to replace than the prices quoted by Mercedes. Even better, the specialists told me that the can replace individual cells in the Toyata & Lexus batteries, allowing them to offer very reasonable prices to get drivers back on the road. I'm so sorry to post on a Fiat forum to talk about a different manufacturer, but I was very upset to part with the Mercedes, it was everything I wanted in a vehicle, and I hoped it would be the last vehicle i would ever need to buy. Please don't be sucked in by the electric vehicle confidence trick. Engineering break through's like the Twin Air engine are the real way forward. Electric vehicles are a solution that doesn't work, looking for a problem that doesn't exist!!