The Sigma 150 engine was an upgrade to the original Sigma 125. This included higher lift cams, bigger injectors and most importantly, throttle bodies. Not only did this engine produce an additional 25bhp to its stock variant, it transformed the driving experience. Throttle bodies add character in spades, transforming average engines in racing machines, with razor sharp responsiveness and a soundtrack that will send pulses soaring.
The 1.6 VCT-i Sigma engine superseded the original Sigma in 2014. Offering variable cam timing these later engines produced a little extra torque and power, as well as a small additional improvement on fuel consumption. This meant that the entry level engine increased from 125bhp to 135bhp, and the uprated version of this engine increased from 140bhp to 152bhp. This soon led to the model names being changed from Roadsport and Supersport, to 270 and 310. Unfortunately, this incredibly reliable and diverse engine has now gone out of production and as such is no longer a part of the Caterham range.
The 160 model was a fantastic modern-day hark back to the Sevens of old, with small 80 horsepower engines, reduced grip from skinny steel wheel and a classic live axle feel.
The Roadsport 180 was the prequil to the 360S, matching the 360 in almost all mechanical specifications. These were part of the Caterham range from 2007 through to 2016 when the models were renamed to their current format. Earlier versions of these cars were known as Roadsport 175’s, which had a metal inlet plenham and cone airfilter, before Caterham moved to cold air induction.
The Supersport was one of Caterham’s most popular models. It found the perfect sweet spot between power and grip, much like the original Superlight managed back in the late 90’s. It came complete with a revvy 1600cc engine, lightened flywheel, sports suspension and a limited slip differential as standard, for maximum fun factor!
This really interesting and highly modified Seven started its life as an Academy car back in 2007. From there it has been modified and upgraded beyond all recognition and is now a super, high performance and nearly immaculate Seven that any enthusiast would be proud to own.
This Roadsport was one of the very last K-Series powered Caterhams to leave the Dartford factory.
The 310 is Caterham’s beafed-up version of the 1.6l Ford Sigma VCTI engine, increasing the power from the 135bhp found in the 270, to 152bhp. Though it doesn’t sound like much, this extra horsepower really transforms the character and excitement factor when out on the open roads, providing that extra punch right across the rev range.
Powered by Ford’s 1.6L Sigma engine, used across their range for years, this entry level Caterham is extremely dependable and provides ample performance for the majority of circumstances.
This Roadsport has had just one owner from new, who ordered it to be built by the factory and delivered to him in early 2012. During his ownership, this car has traversed the northern part of the UK, and provided a “flawless driving experience” as it did so. Like many Sevens, this Roadsport was very much part of the family, but sadly as time has moved on, the owner has found it incresingly more difficult to use.
The Roadsport 125 was Caterham’s bread and butter Seven for many years. Fun, refined and incredibly user friendly, these were Caterhams which could almost be used every day.
The 420R is widely regarded as Caterham’s best overall model from their current range. Its naturally-aspirated 2.0L Duratec engine provides awesome power, sharp throttle response and excellent drivability to go with Caterham’s superb Seven chassis.