610s are a bit bigger(more roomy/luxury)the suspension is all the same,rumour has it 610 springs are "stiffer" I have driven both,and also installed 610 springs in a 510 no difference that I could notice,so leave the "rumour " as that
All Dattos are cool, and I respect all the same way,just personal preference,I have owned 1200,210,510,610,710,620,521. Always had a 510
Oh wow, nice man, that's awesome. The 240 has been my only car so far, but apparently there have been a bunch of Datsuns floating throughout my family over the years, grandma had a z (passed away) and other grandma had a 610 (living life like a 10 year old) so I wouldn't mind carrying on the family tradition. Except mine will be much more awesome
"I like my cars like I like my women, low and slow...'cause fast doesn't rhyme with low"