There were similar fears here in Ontario before they went to graduated licensing, but in the end they decided that HP or engine size restriction was too hard to set up and enforce and they went after the rider instead. So what started out as a good idea ended up as a farce:
M1 (learner's) level: All you have to do is pass a written test and you get your licence. That means a 16 yr old can get the Gixxer of his dreams if daddy is willing to pay the obscene insurance rates at this level. Restrictions are that you cannot ride after dark, cannot carry a passenger, you must avoid the 400 series highways (all 4-lane superhighways) and maintain a zero blood alcohol level while riding. If you get caught doing anything stupid at the M1 level your licence is usually suspended - and just try and get a decent insurance quote when it's reinstated!
M2 (intermediate): Within 90 days of getting your M1 you can upgrade to an M2. This can be done by passing a written and practical test at a driver's examination center or by taking and successfully completing a Canada Safety Council "Gearing Up" course, usually offered at your local college. Pretty much all of the insurance companies here offer substantial discounts if you take the CSC course, in fact the insurance savings usually pay for the course and more. When I was a CSC instructor it was not uncommon to see younger riders save $1,500 EVERY YEAR because of the course. Anyway, all the M1 restrictions are then removed except for the zero blood alcohol level. You can renew the M2 permit every year for a maximum of 5 years; if you don't upgrade to an M within that time frame then you get dumped back to the M1 level and start all over again.
M (fully licenced): After a minimum of 18 months at the M2 level you can upgrade to M by taking another test at the driver center or another course at the local college. Taking the course doesn't result in any insurance discount this time, though. The zero blood alcohol level restriction is removed and you're legal to drink and ride up to the 0.08% limit as defined by law.
