With a passport from the UK, Ireland, Canada, USA or New Zealand you automatically add 5 points to your partner’s visa application. If you completed the Motor Mechanic skills assessment for Australia (and are under 45 years of age) this would add 10 points.
Not only do you get extra points for an Australian skilled visa, you will arrive in Australia with your Australian Certificate III as a Motor Mechanic. This is huge as employers want you to hold the necessary qualification so they can insure you to work in their garage or workshop. Australian mechanic employers need to follow health and safety requirements.