Likely pricing error - normally £79.99 on Microsoft UK store, $139.95 AUS store, so get in quick!
Ultimate back up to £59.99, but Deluxe still available at £29.99 (still 50% cheaper than Aus $119.95 asking)
Deluxe now up to £44.99, but Standard is available at £29.99 which is still decent.
Standard is now at £32.99 (~AUD$56). This is still cheaper than local prices but will leave it up to mods to decide whether this is considered expired or not.
UK address required but redeemed fine on my aussie account.
creddit: r/GameDeals
Thanks OP, been waiting to pull the trigger on this one. Good Price for Ultimate Edition
Forza Horizon 3 releases later this year, and this time around it's set in Australia. If you're willing to pay the extra, you'll also get a bunch of additional cars to drive in the land down under. Forza Horizon 3's Ultimate edition comes with the Car Pass, Motorsport All-Stars Car pack, and VIP membership.
The Car Pass gets you six monthly car packs that include seven cars each—42 cars in total. The first pack releases in October, and a new one comes out each consecutive month with the last one releasing in March of next year. If you can't wait until October for new cars, the Motorsport All-Stars Car pack gives you 10 modern race cars to take for a spin from the get-go.
Lastly, the VIP membership grants you access to exclusive cars, events, and more. The five cars included are the 2016 Lamborghini Aventador LP750-4 SV, 2016 Koenigsegg Regera, 2015 Ferrari F12tdf, 2015 Ultima Evolution Coupe 1020, and 2015 Ford Falcon GT F 351. VIP members also get bonuses like double Wheelspin earnings, access to online events, and community gifts.