They've just done one on the Citroën DS.....and obviously for the benefit of watchers who might have missed the first programme, Fuzz was just as amazed at the complexity of the hydropneumatic system this time as he was with the SM. Actually almost everyone rabbits on about how 'alien' the Citroën system is - or rather was since it died with the C5 - but in reality it's no more difficult to work on than any other hydraulic system. Many years ago I had a GS Estate on which I ended up replacing most of the braking and suspension hydraulics myself. Interesting and educational.

At least with Car SOS they don't claim to have made a profit on the work - well they can't unless they charge for it, which we're led to believe they don't. That's a constant annoyance with Wheeler Dealers where at the end of the prog they itemise the spend in some detail before usually selling the car and 'making a profit'...ignoring the labour cost! OK, if you'd done the work they've shown you yourself you might have come to the same conclusion, but unless you put a value on your man-hours don't delude yourself that you're making money. Some years ago I restored a car at a cost of around £45k in parts and specialist services. All the disassembly overhaul and re-assembly was done by myself. I didn't keep a log of the hours I spent on the car over a period of 4 years, but they were considerable. On a good day with a following wind the market value of the car now might just match my spend. I don't begrudge my time or the cost, I enjoyed it. Some commercial enterprises may enjoy car restoration too, but they'll only stay in business if they charge their hours, at anything from around £50/hour to £150/hour and more depending on the complexity of the work.
One program where they can generally be guaranteed to make a thumping loss on car restoration is the spin-off from Bangers and Cash - Restoring Classics. The team buy the car at auction, pay to have the resto work done professionally and then auction it again to recoup the cost. Fat chance! At least it emphasises just how unlikely it is for anyone to recover their costs, never mind make money, by buying a banger and paying to have it restored.