That's a real shame because it's one of the good ones to look forward to. Can I suggest an alternative that I went to last year close by around a similar time of year: Edenbridge car show. This year on the 10th September. Although not exclusively Italian the was a massive turnout and really friendly similar atmosphere to Honnington. I think it was only their 2nd year so expecting an even bigger show this year. All for charity so very unassuming and all sorts of cars to see. I'll try and post the link this evening as only posting on phone at the moment, but in the meantime their website for this years show is live.
Chris