In the trucking game, it seems the mantra of ‘the bigger, the better’ holds true – at least it does when it comes to the reviews that capture the most attention. The bigger the engine, the more the horsepower, the heavier the GCM, the greater the number of trailers; here in Australia, home to biggest rigs on the planet, we can’t get enough of 'em, and that’s reflected in our top five heavy-duty reviews for 2021…