A few weeks back I was overtaking at about 60mph. The car behind me moved into my space. The car I was overtaking decided to put the foot down while the car coming against me was closing in. I was able to accelerate out of trouble. For me, a car with a bit of poke is important. Both for what I mentioned and for passing out a slow moving vehicle on a road with few long stretches.
.....not sure that proves anything other than that it wasn't safe for you to overtake in the first place. You may want to think about what would have happened if your engine started to fail at this point as you had no return route. Higher engine power can be used to reduce time exposed to danger but shouldn't be relied upon. The number of people I see doing this kind of manoeuvre on the N25 Rosslare road just off the ferry is frightening.
Personally I don't think the higher-powered Evos etc. are the major problem - although I don't see the point in paying that much money for power you'll never use - as they are often far more capable than their drivers and are chock-full of driver aids. The real menaces are the souped-up rotboxes owned by the baseball cap brigade - how many times do you see a news item where three "innocent angels" from a small village have been killed and the pictures reveal the cheap mismatched alloys, plastic "aerodynamic" Halfords tack-ons and inevitable Lexus lights on a 99 Saxo.
SSE