It is a little funny, I have had the 70hp version of this car, as our 2nd family car for 7 years. And I have never ever felt that it was under-powered. Of course it is not a sportscar or anything, but for daily drive it is more than "strong" enough and the gears are low, so you just never miss power for accelerations. :)
Father has exactly same, bought new, engine very lazy, spend a bit more then should with this strength, but with this car forget on problems, only if you need something more strong, otherwise perfect choice especially for retired people!