I just went out to the shops and maybe drove 1 mile or so. Parked the car, did my thing and came back to start the car but it wouldn't kick in. Starter motor turned over alright but the engine didn't catch on. Tried again, but again, didn't start. One more time and it'd start and the it'd slowly rev itself up to about 800rpm and it's all fine from then.
Is that the fuel filter (where is it anyway?) or just spark plugs? Never happens in the cold mornings though and is an intermittent problem.