If the car is in great working order, and maybe has a few quirks I say go for it using it as a daily driver. I've been using my 1970 220D which does 0-60 in 31 seconds as a daily driver for the past 6 months and it has been nothing short of a rewarding experience.
The ONLY complaint with the 220 I have/had is no working A/C at this time and I live in the desert, so that kind of sucked. But now that it's winter it's awesome. I get great mileage, feel somewhat safe lol and know I look good
The whole being able to keep up with traffic and all that is not even a problem, and I have a longer 0-60 than you! The only slow part of the car really is the take offs. But once I get going I have absolutely no problem keeping up with traffic and can pass people if I want, freeway onramps aren't a big deal either. I have never had trouble getting on a freeway, if you can get behind a semi who is on the onramp, you can blame going super slow on them
Hills are another thing my 220 hates and are what slow me down pretty bad. But I mean you can't do anything with a 4 cylinder 65hp diesel car. But I mean for going to work and around town, it's a great car to use.