(AGI) Montmelo' (Spain), Feb 22 - McLaren-Honda driver FernandoAlonso has escaped without injury from a heavy crash inpre-season testing. The Spaniard hit the wall on the exit ofturn three at the Circuit de Barcelona-Catalunya. He wastransferred by helicopter to the nearest hospital. The championfrom Oviedo was subjected to a CAT scan that ruled out anyproblems, but he will pass the night in hospital as aprecaution. Alonso was driving relatively slowly, around140kph, and then turned right into the wall. Observers spoke ofa possible illness. This possibility was supported by the factthat Alonso stayed inside the car for ten minutes after thecrash because of dizziness. Alonso's agent immediately deniedany physical problems, and spoke of mechanical problems of thecar. In the afternoon there were speculations about a possibleelectric discharge generated inside the car that may have hitAlonso. An investigation will need to clarify the cause of theaccident. Alonso will leave the hospital on Monday. It was abad day overall for McLaren, also because Jenson Button did notdrive in the afternoon, so that the team from Wokin closed fourdays of testing with a total of just 104 laps, where otherteams did that many in a day. Romain Grosjean set the fastesttime with his Lotus E23 for the third day out of four. AtFerrari, Sebastian Vettel took the wheel for the second day,completing 76 laps. His test focused on reliability, withseveral long runs while testing different set-ups and tireconfigurations. The programme was not been fully completed, butthe four-time world champion said he was satisfied with thebehaviour of his SF15-T. He set the seventh time, more than asecond behind Grosjean. . .