Dennis said it was a 26G impact, given the speed at which it went not only off the road but into the tires he was very lucky to have such a light impact, had he hit anything harder we'd have seen something as bad as Kubica's crash.
IMO comparing Kubica's crash @ Canada and Heki's today is like comparing football to rugby.
Kubica's crash looked dangerous because of all the parts flying off, but in that there is a lot of energy dispensation and the cars is gradually scrubbing of speed. OK Kubica probably was suffering from an extreme case of Nausea and spinning room syndrome.
Heki's was potentially more dangerous because of the sudden stop and impact into the tyre wall, thankfully unlike Schumacher's in Silverstone 98(?) it looks like the wheels snapped clean of rather than the arms penetrating the cockpit. If he does not have a really big headache tomorrow morning then he's got lucky.
Kubica got off very lightly because of the way the car never made a solid connection with the very hard wall he was going into, even the glancing blow was enough to rip the car apart and leave him traveling very fast and exposed, the car simply wasn't built to withstand that kind of a crash. Hekki's car stopped exactly like it was designed to do so from a considerably lower speed in a car length or so, the tires clearly took the impact like they were meant to and the various parts breaking off meant that the impact was absorbed over a distance of about a car length or so, the majority of Kubica's impact was absorbed by the car, not the wall, in the second impact, had the first impact been more solid contact he wouldn't be here.
Just watched that scary accident again, and took a look one some other link, looks like he had more crashes in 2001, looks like pretty carefulness driver imo
anyways, apart from that crash, most boring race in a long long time...
But he went 'under' the tyres at high speed and broke his two legs in this accident.
So yes, I was worried when I saw that Kovalainen went 'under' the tyres as well.
In Le Mans Series at Monza Jamie Campbell-Walter got airborne first and then crashed in similar way straight to the tyre barriers: http://www.youtube.com/watch?v=dnLBf6N3xPA
AFAIK there was a "race" here last year and there will be a GP this year too. But I agree with you, the Hungarian GP should be much more exciting to watch but they would have to build a new track for that .