Congrats
The
Snugride is a well liked
infant seat, easy to use, fits newborns well & fits most vehicles well.... Correct use is the key! Referrence both vehicle + carseat manuals, keep asking questions here, call the manufacturer's for clarification & have your local CPST check your install when baby arives
Most infant seats are outgrown long before a year old (usually 6-8 months, my daughter was only 4 months when she outgrew her by the top of her head being within 1" from the edge of the shell/frame) so you'll probably want to also start comparing
convertible carseats once you get baby home & settled
Does your Legacy have the center bump like my early '90s model did? If so, baby's carseat may need to be installed outboard because that bump often makes it impossible to install properly in the center. This is fine, the important thing is that you follow the manuals & the seat moves less than 1"
at the belt path (the top will wiggle because in a crash it will rebound to cocoon around baby).
If possible, I would try for the
Graco SafeSeat Step1: based on the
Snugride but fits 90% of 12 month olds & many 18 month olds, too! You don't have to carry baby in it all the time, but then you have the option of keeping the seat portion at room temp longer during extreme weather & for keeping spare bases installed in various vehicles.
Also remember that the front seat occupants need to have at least 10" between face & steering wheel or dashboard where there's an active airbag. If the carseat causes the front occupant to be too close to the airbag, then I recommend installing on the passenger side so that the other adult can sit in the back with baby (this is also much safer for the adult assuming there is head support at least up to eye level).