My slagging off of the C4S may have been crude and did not come across as a factual argument but, I will stick by it.
I have to question how many Porsche's some of you guys have driven to think that the C4S is the performance pinnacle of the 911 range. Maybe they are a good 2nd hand buy but, in comparison to a C2S that is all they are. I don't mean any offense to C4S owners in this statement but they are not a true drivers car.
Before you eat me for breakfast, allow me to illustrate my argument with some facts.
We are talking up to 250Kg difference between a 987 class car and a C4S and most of that weight is added at the wrong places (front and rear).
This makes a massive difference in the performance and handling of the car. Ceramics are a waste of money when you weigh in at almost the same as an SUV, an exaggeration but it stands up to scrutiny
The Gen2 Turbo won't suffer from the outright speed problems as it has a nuclear reactor for an engine which means that the power-to-weight ratio is blown to pieces but at £115k in a decent spec, you need to be committed to pick it over the GT3 which, is the best car I have ever driven.
The 997 C4S Gen1 is a slower car than a Gen2 Cayman S in hot spec, this is a factual statement.
The Boxster Spyder is faster than a C4S Gen2, this is a factual statement based around personal experience (amateur road and track work) and available technical information. I would assume from this that the Cayman R is quicker still.
Both of these mid-engine cars are quicker due to power to weight and weight distribution.
This is why the Gen1 RS cars use the shell of the C4S but not the running gear, it is just too heavy and does not provide significant performance increases to justify the cost.
The C4S is aimed at people who live in snowy/icy conditions for large parts of the year so they do not lose 911 sales, it is not the performance model of the 911 range.