My 5.5-year-old twins have outgrown their Cosco Scenera NEXT, what are my next options?

Angelika got in touch with us because her twin boys have outgrown their Cosco Scenera NEXT, and she was wondering which restraints should the boys graduate to. Read as Elise advises Angelika on her restraint options and personalises a plan for her twins.
Angelika is on the lookout for a forward-facing car seat for her boys. She relies mainly on her BMW or her relative’s 8-seater Toyota-the latter without a tether anchor or ISOfix-to get around in Singapore. Angelika finds the Cosco lightweight, long-lasting, portable and easy to use, and thus is searching for something similar, as she occasionally uses taxis/Grab and often travels to Indonesia and New Zealand. More importantly, she prefers a car seat that can be used without a tether anchor or ISOfix. The boys also have their own RideSafer travel vests, but Angelika is a little hesitant in keeping them in the vests as she's unsure if they are of the same caliber as a car seat or booster seat.
Start reading now: bit.ly/2VbUYnN