Knockhill Track Test
Following a very wintry 105 mile drive south to Knockhill circuit Fife, the weather at the track thankfully stayed dry and bright, albeit a chilly 8c. This was barely over the minimum recommended ambient temperature threshold for the Michelin Pilot Sport Cup 2 tyres with which my Alpine A110 Legende GT was shod for the occasion.
To add to the frisson of anticipation of how the A110 would perform, the presence of friend and fellow PCGB forum contributor Andrew CS with his 981 Cayman GT4 was a welcome coincidence. Andrew had booked the same Performance Driving Course as myself on the same day at exactly the same time. As this was a one-off occasion we decided to share the cost of hiring professional photographer Lewis Houghton to take static and action photographs of both our cars on the track. As you will see from the photos posted later, we were absolutely delighted with the results.
My driving tutor for the day was Michael Gray, a resident driving instructor at Knockhill and currently a Scottish Formula Ford Championship contender for the 2022 season. I was pleased that Michael had a slim and lightweight frame bearing in mind the weight conscious nature of the A110. Handling dynamics in such a light car are significantly affected by the passenger’s ballast weight.
Being no stranger to Knockhill I soon got on the pace following a couple of exploratory laps to suss out the gearing, brakes, and tyre temperature warm up. The A110 Legende GT is very different to the Cayman variants I have driven at Knockhill in several aspects. Firstly, the intermediate gear ratios are shorter, meaning that the A110 was pulling a gear higher than the Cayman in the medium speed corners and on the main straight. Turns 1 and 2 at Duffus Dip were taken in 4th gear, dropping to 3rd for Turn 3 MacIntyre’s. A shift up a gear to 4th for Butcher’s and the following Chicane. Fourth gear is held all the way to Clark’s corner, shifting up to 5th for the short sprint along the curving “straight” towards the hairpin. This tight corner is a slow 35 - 40mph rotation. Almost a 180 degree change of direction with a steep slope at the apex. I tried this corner both in 3rd and 2nd gears. In damp conditions 3rd would be best, but on a dry track 2nd is fractionally faster in the A110. You need to be ready to catch an oversteer slide when exiting the hairpin. The following uphill pull along the start and finish straight is a full throttle red line cascade of millisecond upshifts to 5th gear on the A110, peaking a maximum velocity of around 115mph under Beatson’s Bridge.
The second difference compared to the Cayman is in the angle of body roll the A110 exhibits when leaning on the tyres. Being suspended by double wishbone suspension all around, the car rolls on a longitudinal axis from front to rear. Somewhat like the Lotus-Climax and BRM Grand Prix cars of the 1960’s. The road wheels maintain a constant camber during this cornering roll process compared to McPherson strut based systems as deployed by Porsche. I found myself perfectly comfortable with the increased roll angles during fast cornering. This in no way compromised the steering feel or mechanical grip of the tyres. After a few laps I actually enjoyed the sensation of the car leaning into the corner.
The third difference between the two models is perhaps the most perceptible, that being the 230kgs lighter body mass compared to the lightest of the Caymans. This particular dynamic makes itself felt everywhere. Situations such as changing direction, braking, and acceleration, are all enhanced by the lighter body mass of the A110. The short, close-ratio DSG gearbox also delivers time advantages in straight line acceleration. This being particularly apparent on the long pull uphill after the slow hairpin corner. It was here that the A110 matched the 981 GT4 for full power acceleration. The subsequent braking zone approaching Duffus Dip was also correspondingly shorter in the A110.
Where the A110 and Cayman are very similar is in the mid-engine chassis pivot point just behind the driver’s shoulders. It’s a beautifully balanced cornering transition which inspires confidence for the driver. For the experienced wheel-smith the A110 is a very playful track driver’s car, mirroring the Cayman R in that respect.
The A110 dances its way around Knockhill in much the same way as my former Cayman R. It waltzed through the Duffus Dip - Macintyre’s right, left, right, corner combinations, and displayed a Can-Can style wheel in the air through the high-speed chicane and blind apex Clark’s corner. The A110 is an absolute hoot to drive on the undulating Knockhill circuit. It’s also good on the brakes being such a light car. No brake fade or soft pedal was perceptible.
At Knockhill I had the opportunity to test the Track mode selection, being similar to Sport Plus on the Porsche systems. Selecting Track mode further reduces the intervention of traction control, torque vectoring, and ABS safety systems from the already cut back intervention of the systems in Sport mode. Track also provides a more brutal gear shift map. I did 4 laps in Track mode, which was more than enough. I would say Track mode should be renamed Hooligan mode. The full throttle gear change upshifts are not merely engaged with a clunk, its more like a slam. It really is a brutal mechanical action. It reminded me of upshifting the straight-cut dog-ring gearbox on my racing Imp Stiletto many decades ago. I would not care to think of the mechanical wear and tear taking place with frequent use of Track mode. At speed the car was much looser through the corners with this mode selected. If tyre smoking power sliding is your thing then this is the setting for you. As I said, Hooligan mode is a more apt title. Both my tutor and I agreed that Sport mode offered the best mix of mechanical sympathy and driver confidence.
A couple of niggles. The DSG gear shifting on manual mode occasionally took on a life of its own. On a couple of occasions firm, late braking for Duffus Dip resulted in the gearbox downshifting from the manual mode selected 4th gear to 3rd gear, all of its own volition. This was pretty unsettling as you turned into this tricky complex at high speed. It was if the gear shifting sensors were set too sensitive for the braking G-forces. The other niggle was in the opposite direction with upshifts taking place automatically in manual mode as the revs approached the redline, rather than activating the rev limiter on the redline. This occurred on the short back straight between the Chicane and Clark’s corner. Depending on the Chicane exit speed, sometimes it was better to hold 4th gear to the redline before braking for the corner. It was
frustrating to have the gearbox change up a gear just before the braking zone. As I said these gear change niggles were frustratingly inconsistent. Sometimes they happened, sometimes they didn’t.
A quick word on lap times. My tutor timed me for two laps at the end of the session on the in-car Alpine telematics lap timer. Both laps were in the low 61 seconds. That compares very favourably with similar lap times achieved two-up with a passenger in my 718 Cayman 2.5t GTS. My PB with the Cayman R on my own was 60.2 seconds, and in the 718 2.5t GTS on my own 58.76 seconds. I let my tutor take the wheel for two laps and he was definitely lapping below the 60 second barrier. The A110 can punch well above its weight in any company.
In conclusion, I had so much fun driving the A110 on the track. I now know the car better than ever compared to only driving on the public road. The A110 is such a forgiving little car and very confidence inspiring through the corners, dips and crests adorning this challenging track. The car seems to wrap itself around you, and telegraphs feedback to the driver of every kerb, bump, compression, and crest. The extra grip of the Cup 2 tyres suited the A110 chassis extremely well. These tyres compliment the body roll rather than fight it. By providing the security of durable mechanical grip they deliver a gentle progression towards the limits of adhesion. Snappy it is not. Four wheel slides are achievable, even for this septuagenarian driver. So ended a thrilling day at Knockhill. I’ll leave Andrew CS to post his comments regarding his experiences with the GT4 in his own time.
The journey home to the Highlands brought me back into winter wonderland. For a few scary miles I encountered white-out, virgin snow covered rural roads, on Cup 2’s! I can say with all sincerity that Cup 2’s are not for snow. I daren’t touch the brakes. It was more scary than anything I have experienced at Knockhill.
Now I am resigned to returning to normal touring service for the foreseeable future. Happy memories of the A110 driving experience day at Knockhill will remain with me always. Back to reality now.
Brian