The question should be why would you restore a classic car, not can you repair a classic car. You answer your own question, which ever way you say it, and it's very easy to answer.
To answer the question for me at least it goes back to when I first started to drive. The new cars that I learnt to drive in were the mk2 ford escorts lovely cars at the time. But compared to today's cars there is no comparison the cars were basic and no refinement about them, but its what driving is all about.
The first car that I bought was in 1978 it was a Vauxhall viva sl90 and it was all mine and it was the best car on the road well I thought so. What I would give now to find one and restore it why did I ever sell it. Because you don't think a head to when your older and the cars that you owned when you were younger are the cars that you want to have in your garage to take out on a sunny day. That would be so good.
So why would you repair a classic car well for the love of it to bring back your youth as the saying goes they don't make them like they used to well its true, it's like buying a house a lot of people buy a house with character its the same with classic cars you have got to want to do it and have the time to do so when the kids have grown up you can nip into the garage and have some fun. After all who doesn't think about the cars that they grew up with I had the Vauxhalls my mates had fords remember the anglia, escorts, cortina's mk1 &mk2 capri's and whole lot more.If you go to a car show which one stands out. For me its the immaculate classic car not the popular family car after all we are all kids at heart and lets face it who wants to grow up.