There are several things that you can put in order to achieve the Euro-look.
First of course is to buy a pair of EU Plates, along with Plate frames and a base for the front. This alone might already cost you around 3k, 4k at most. As to whether to pick Deutschland plates or Red/Yellow fractions is up to you. But for rarity's sake, I'd pick the yellow fraction. Looks good.
Next up would be the rims, I'd suggest for for 17s, silvers preferably. As much as possible, stay away from the commons. ROTAs, in that sense. If possible, might as well get OEM 16s. There are several around. The ones found on the MMC 07 Altises 1.8G, I believe, looks great.
Several OEM Rims look good too.
^ That came from a Yaris, abroad. IIRC.
Next you could consider would probably be the stance. Tanabe NF springs would do. Tein S-Tech too, or others such as Merwede's, and the cheaper Whitelines.
Doing the said upgrades alone would already set you back at around 60k at least. Next up would be the rear foglights, they come in OEM.
Looks like this
then when on it goes like this
After which, you can upgrade the horns. Personally, I like BOSCH EUROPA.
Then, the rear sun shade. Or SUN-UP as they call it. It is really helpful especially when you travel at noon with passengers seated behind.
Then, you can complete the emblems. For EU Corolla's, the Emblems are usually " TOYOTA " and " COROLLA " only.
They look like this
TOYOTA goes ont he left side while the COROLLA goes on the right side of the trunk..
Next is DUMMY POP UP washers.
Then OEM wiper fins ( black w/ toyota markings )
with that, you're already good to go. Upgrading the interior is already up to you.