Infant car seat

I've been searching for travel systems for baby 2 (basically I hated the travel system I had first time round so looking to replace). I was completely clueless about car seat safety before so didn't research much the car seat that came with the travel system. We like the Venicci Claro but the compatible car seat is causing a bit of a headache. There once was a Venicci/avionaut infant car seat but they now have no isofix bases in stock (I know you can fit by seatbelt but we prefer isofix for ease). The next model was the Engo car seat but apparently this is out of stock now. Apparently the car seat they use nowadays is one called Tiago which is a 360. My only problem is it's new, so new that our stockist won't have supply until March! I'm worried that with it being a new seat there's less safety data. Should I worry??