For the Opus Signature (RRP $549), its not the narrowest seat in the world, but a a premium range Infasecure seat (bamboo fabrics, cupholders, head/side protection, one-hand strap raising/lowering) that is a Type-G (6 mths to 8 years fully harnessed) at a great price.
Price I get is $275 plus shipping, which is $9 to Brisbane which seems reasonable.
EDIT: The Quattro Vogue (RRP $620, sale price around $450-500 usually) is also on sale - http://store.infasecure.com.au/product/1351-quattro-vogue-0-…
This is a 0-4 premium fabric seat as well, which is the narrowest seat on the market.
I got this as an email for the Infasecure EOFY sale. Note that the seats are in the 'factory seconds' section of the store - not sure why or what that means, and nothing mentioned in the email about it.
what's the diff between child car seat & convertible car seat ?