Andrew Frankel writes regular road and race car reviews for Motorsport magazine and is often entrusted by manufacturers or collectors with drives in some of the rarest and most iconic race cars on the planet, e.g. Rothmans Le Mans Porsche 962.
The comparo above correlates to his reviews of the three cars, each reviewed separately in Motorsport. He was less than enamoured (though technically impressed) with the M4, and highly impressed in all ways with the 235, especially when 'bang for buck' is taken into consideration.
Just some useless background info