In the end, my opinion is they are trying too hard.
The rallying segment would have been good, but they turned the entire thing into one challenge. And then they had to go that one step further and blindfold the drivers, just to make it 'different'. Over the top, not necessary and didn't improve the segment at all. Where was the discussion about the cars, the modification scenes? Maybe more than one challenge? This was a problem in the earlier seasons as well. They really just aren't getting their moneys worth out of ideas, they go in with stupid gimmicks and ruin the whole thing, e.g. the caravan challenge. It would have been interesting and amusing to see them drive the off road track properly. But no, we switched the pedals around to make it Channel-9-Western-Sydney-demographic-Funniest-Home-Videos "funny".
The Volvo segment again was ruined by trying too hard and going too far. Why didn't they just put it against the S4 in the first place? Because they were trying to be funny, and just ended up being try hard and unfunny. A 911 Turbo beats a Volvo? Didn't see that one coming. A Volvo beats a Messerschmidt microcar? Wow, what other amazing surprises do they have for us? To me it feels like they are looking for things TG UK hasn't done. Only one problem, there's usually a reason they haven't done it.
FJ Cruiser thing? Good idea, ruined by execution.
My suggestions remain the same. Relax, give the viewer some extra credit, we're not all beer-swilling uneducated labourers from Penrith. Stop with the silly gimmicks, consider that maybe it would be better without them. They are meant to improve it, make it funnier and more exciting, but they don't work. Ditch them. When you do a challenge, actually see it through. Start at the beginning, and don't get held up being different. If it's something the UK show has done, that doesn't mean you have to set everyone on fire and make them race cars backwards to make it different.