Do Dunlop SP Sport Maxx run narrow or wide?

[Dr.AK]

As stated above, I need some new tires for the front and as I'm a bit tight with money because of my upcoming trip to the UK, I'm looking at getting some used ones.

I may be able to pick up a good set of Dunlop SP Sport Maxx in 205/40/17...

How do they run? Do they stretch well?