Oh my, I've always liked Dijon. So flowing where most corners affect the following corner, and you really have to work at keeping the balance just right, it's lovely. Track is made for the Alfa. I spent a huuuuge amount of time, maybe 5 hours total over a period of two weeks or so, trying to get that 16 in the Alfa about a year ago. Failed at that, lost the bet I did it for, but still a great track. Have I said the word Alfa enough already?
Two things are key.
1. Remembering your gas pedal is not an on/off control. Many places benfit from using 80-90% throttle instead of the ol' 100%->0%->100%.
2. Riding the curbs.
Sliding slows you down and is risky, even though it's fun
so try to keep it minimal. Only place it's any good is T1, for getting the Jag/Vette to turn, and even then it's a small slide. Going sideways proper is, sadly, no good. T3 you might want to briskly lift off the gas to get the car to turn, but that means you messed up the entry (which I frequently do). I suspect Elan doesn't want any sliding at all, though I haven't driven it here. T2 uphill where you're just switching from turning left to turning right is a place where it's easy to get a slide (& spin even) if on full throttle, but letting off completely slows you down. 80-90%, i.e. just lifting a little, is enough to maintain control.
As for the second point, here we, and perhaps especially I, need to be mindful of UKGTL rules regarding driving outside the track. Going for lap records entails getting the whole car outside the track (if we count the white lines as track boundries) at several places (T2, chicane first and middle part) and I'll try my best to keep two wheels inside at all times next thursday. This is at least true for the Alfa and I'd wager for the E-Type&Vette too. But especially at the chicane it's so very very easy to loose it if you go curb jumping proper, so I'll have to find a safer route, also in accordance with the rules, come thursday practice.
T3 you can stay away from the curbs completely, you can put two wheels on the curbing, or you can even put all wheels on or to the right of the curb. Not much difference in speed if you get it right, but the middle option is much easier to achieve. Even when doing that (right wheels over right curb) you still need to be very precise, because taking your outer wheels (your left wheels) against the curb midturn will push you away from the curb and make you go wide and have a crappy entry into T4, which means you'll either slow down a lot or have a crappy entry into T5-6-7 (chicane) as well, which means your chicane exit will suck too. At least, this is what will happen if you can't correct it at some point, and if you're being pressured from behind you might not be able to, very easy to get contact if the guy behind doesn't realize what you're up to.
Heh, so that means in worst case getting T3 entry/apex wrong means loosing time all the way to T8, second to last turn on top of the last hill. But really, I'm just dramatising that, you should be able to correct T3 error in T4 entry, but if that happens be mindful of someone trying to pass you on the left before the chicane. That chicane is a recipe for disaster, but very fun also.