this is only a recent thing in this country where it seems to have lost its seriousness, 20-25 years ago i know someone who stole a car and got 2 years and it was a 1st offence also similiar thing with a motorbike the guy got 6 months. Also around that time there war cars being stolen for rallying Audi Quattro being one the little group who was responsible for this got 4 years from what i can remember, a slap on the wrist and a bit of community service now.
The british law seems to have lost the plot somewhere, awhile back it was supposed to be a manadatory 5 years for possesion of an unlicenced firearm, in reality it doesnt seem to happen.