Yes and no. Your mix is never going to sound as crisp as it does in the studio (ideal listening conditions). Road noise + reverb off the glass + cheap speakers

Yes and no. Your mix is never going to sound as crisp as it does in the studio (ideal listening conditions). Road noise + reverb off the glass + cheap speakers = not as good a listening environment. It's best to build familiarity of other commercial productions on your ideal setup (monitors/headphones/etc.) for referencing purposes earlier in the process, in my opinion. Good to reference on more 'everyday' listening systems, too (personal favorite, the iPhone speaker).