I’ve long been a fan of Mercedes-Benz World, the giant showroom/museum/test track that pays homage to the history of Daimler cars from yesteryear through to the latest range of cars that you can inspect, spec, purchase and collect on the premises.

In my view, its biggest success is offering up enough to keep anyone of any age interested, be it by ogling at tyre-smoking demo runs, marvelling at the art installation of a dissected Formula 1 car or simply drinking a large cup of posh coffee while admiring a Smart Forfour.

However, it’s a fact that – in the UK at least – Mercedes-Benz World is a unique asset, and I’ve no doubt that is because it was both monumentally expensive to build and remains so now to maintain. Where Mercedes sees a value, I guess others don’t, which is a real shame because whatever you do, touch, see or smell at the place is acutely on-brand. People who go in curious tend to come out as converts, and that must pay dividends for Mercedes sales in the long-term.

However, just because such places don’t exist in the UK doesn’t mean they do not exist elsewhere - normally close to the centre of where the cars are built. I’ve been to BMW’s museum in Munich and the Mercedes-Benz one in Stuttgart, for instance, both of which are mightily impressive. Then, while on holiday in Paris last month, wandering down the Champs-Elysees, my eyes fell on a tall, colourful glass-fronted building bearing the Citroen chevrons that I wasn’t previously aware of.

The Citroen C_42 building is – surprise, surprise – at number 42, Champs-Elysees, a prime piece of real estate that presumably means the bean-counters keep a very close eye on ensuring it pays its way. In a very different, but just as appealing way, it is as expertly judged at delivering on Citroen’s emerging brand values as Mercedes-Benz World does for Mercedes, although its scope is necessarily more limited by the amount of space available.

In fact, the width of the C_42 building is seriously restricted, but famed French architect Manuelle Gautrand got round that by stretching it 30m up, over five or six levels, and then putting a twisting metal tube in that runs from the top floor to the basement, and which you can slide down at quite an impressive speed in exchange for a euro.

On each floor, there’s a plinth carrying cars from Citroen’s past, present and future, including production vehicles, race cars and concept cars. Even alone, these plinths are beguiling pieces of engineering, as they can be cranked up and down so that new cars can be driven on and off. Fully expanded across the height of the building, they set an amazing and frequently changing tone as you climb or descend the stairs to take it all in.