The reason why was, many of the VIIC/41 upgrades were added to the ‘late war VIICs’. However, I have noted a trend that the German were more likely add the newer elements to the VIIC/41 like newer versions of radar, radar detector, Alberich, Balkongerät, Diesel Exhaust Outlets Style, Late DF Style, SCHNORCHEL Head Style, SCHNORCHEL Anti-radar Coating, Radar Casting and 3.7 CM gun mount.