原題は
こちら。
その中でDigger90氏の隼エンジン仕様（220bhp @ crank, 183rwhp, 469kgs. Outperforms a 420 Cup yet extremely tractable and forgiving as a road car.）はひときわ目に付いた（残念ながらエンジンの画像はないが）。
本人は「
As others have said, the feedback, balance, handling, agility, turn-in etc of an extremely light car - as well as the noise - are breathtaking. My car is 140kgs lighter than a 620R.... Yes 140kgs!!! Think about that for a minute...」と自画自賛している。
また【
Hayabusa powered Caterham My ProfileMy PreferencesMy Mates】でも
It's a standard 1340cc Gen 2 that's been mapped, setup and rolling roaded by RLM Racing. They know their stuff when it comes to Hayabusas, since they've been doing most of the Radicals for years and now the MK Indy 200 Cups.
It produces 110 ft lbs wheel torque. Like most people, I thought bike engines wouldn't produce enough torque for a car - until I actually drove one. It's nonsense, a fallacy, and completely overdone by the uninitiated. Bike engine design principles are very similar to F1 engines (very shallow pistons, short stroke, oversquare, ability to rev to 11,000+rpm) and no-one in F1 complains about a lack of torque. :-) My Caterham Hayabusa pulls cleanly from low down in 6th gear and happily tootles around Town. You may need 400 ft lbs torque in an M3 that weighs nearly 2 tons, but not in a Caterham that weighs 469kgs.
When you run the calculations the Haybusa car has a very similar torque-to-weight ratio as a 420R (0.121 vs 0.106 ft lbs/lb respectively - although this is possibly understated, since my Haubusa car's figure is wheel torque whereas Caterham only state engine torque for their cars). Again, no-one complains about a lack of torque in 420R Caterhams(!)
As for the gearboxes/clutches not being up to it... again, not true. The Gen2 Hayabusa has much stronger dogs than the 1st gen (which was already stronger than most other bike dog boxes).
My car has a 3.12 diff.
When I take people out on pax laps in my car the most-often heard response is "Holy Mother of God!!!!" and "SH***T, that is awesome!!!", not 'Oh, it's lacking a bit of torque isn't it?"
And I speak from a point of some experience with Caterhams... I've owned 4 of them (a Sigma, two K Series, and this Hayabusa) and still have 3 of them, and have driven several R300, R400 and Duratecs.
You're right - it doesn't have any of those issues(!)
It's very tractable across all rev ranges, pulls cleanly from low down and the 6 speed sequential is frankly, a delight to use. It certainly isn't a pain to drive as you describe nor does it 'only work when changing up with WoT.
In fact, it's a more user friendly box than than Type 9 5 speed in my 1.6 K Series SuperSport, and I'd say the equal of the Caterham 6 speed in my 1.8 K Series SuperSport.
と書いている（あえて日本語に訳していない）。
私としては街乗り仕様にするつもりはないため、低速はあまり考えなくていいと思っている。
