Well .. To be Honest Audi is a luxury brands.. I will go for Audi any day. Honda accord is a regular sedan. Driving dynamics, comfort options safety wise Audi is way ahead. Honda and Audi are no match.. But luxury comes with a price.. Maintenance will be expensive.. I will never take an Audi to an on the street workshop..
Just have a test drive.. Cabin comfort, road handling ,The German engineering speaks for itself..
Space wise Accord is more roomy than A4. New accord is full size sedan while A4 is mid size.. Rear leg room and seats of accord are much open then A4.
Again its personal choice but Accord competes with Camry, VW passat, Ford Taurus, Fusion,Kia Optima, Hyundai Azera somewhat.. Accord is never is competition . I mean competing A4..
I own two VW's ( brand new) the parent company of Audi which is not a luxury brand.. Even driving VW is more pleasureful then Honda.. No offense to Honda owners here..