ChuH

Just watched Fifth Gear Season 26 Episode 3. Very entertaining. Sorry don't have a link in youtube yet. You probably can search torrents or online streaming for the show.

Tiff Nedell drove the RC-F and Karun Chandhok the M4

Drag: RC-F wins (wet track; M4 tires spinning too much)
Drift: Tied
Track: (RC-F time 1:44.3 and M4 time 1:43.8) (double point weight)

Overall: M4 wins but they were quite surprise how close the RC-F kept up in cold damp day.

aginnt

Shoot. I haven't seen. I couldn't find a link.

sraesmit

Balance is the key word here for anyone that's been on the track. I've tracked the RC-F now, coming from a 2015 STI Launch, and 2007 Z06. The weight transfer is frustrating, but Lexus has designed a WELL BALANCED car. The M series cars get extremely finicky in oversteer conditions which hurts it. A LOT.

DougHII

Balance is key. Newer track junkies might be more comfy with understeer, while experienced may rather have a bit of over than understeer.

Regarding understeer, I grew up racing a 911 SC in the mid 80s so I learned the art of trail braking early on to get front tires to grip at turn in and through to the apex. You might have to trail brake the RCF a bit to get car to remain settled at turn in and and provide you with a nice smooth weight transfer.

Nevertheless, understeer can be more frustrating at 10/10ths than oversteer. Oversteer does not bother me at all. My guess is M4 may have a bit of an issue with throttle oversteer for the unwary getting into boost on track out more than a pure balance issue, but hey I am just speculating. I used to throttle oversteer the heck out of Formula Atlantic and Champ Atlantic when I first started racing those, especially on damp surfaces.

Nothing like a neutral car when you can use maintenance throttle to keep perfectly on line and simply use throttle steer to correct line or arc without changing steering arc. I do love the feel of a car that can hit the braking point hard, but settle immediately when coming off brakes and feeding maintenance throttle right at turn in.

RCF may need a stiffer suspension and probably a little trail brake to keep it settled to the apex.

sraesmit

RSR has developed a fairly adequate suspension system. I know a contributor of the engineering processes and test specifically for the RCF system. I've got it here in the house just waiting to be installed. Will update in a new thread on it's performance.

aginnt

I just watched the fifth gear episode. It aligns pretty closely with what most reviewers think: RCF is a solid and well balanced car. The M4 is faster but much harder to drive and more spikey. RCF is more controlled.

ISF001

Six of these, and a half dozen of those. Choose your weapon. No surprises here nor do I expect to see anything revelatory at this point. It's a driver's race.