I went thru the SAME Exact dilemma. New Z vs. old G for the same price.
I decided to not go for the G, these were my conclusions, of course very personal to me:
- External looks, Z wins. Wife will surely look sexy in it.
- Keeping my old 4 seater so '2 seater being inconvenient for trips to the city' eliminated, Z wins
- When I get older, I would go for an even more luxurious car than the G. Plenty out there. I'm a fan of great interiors (incidently I was the one who started the wood trim in the Z thread..LOL! because I was going thru the exact same problem of the Z not being luxurious from the inside).. Z wins
- When I get older, no offense to anyone, it'd be nice to not be associated with a mid life crisis. Z wins at age 24
Z now, luxury car later. Hope that helps.