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By Caroline Cheese
BBC Sport’s Andrew Benson at the Hungaroring: "The big interest this weekend is whether the hot temperatures in Hungary will allow Brawn, who have struggled to get optimum tyre temperature in the cool conditions of the last two races, to compete with Red Bull. Jenson Button’s car has what the team believe will be a fairly major upgrade, with a new diffuser, rear wing and bodywork. Among other teams with new bits, Heikki Kovalainen has the new diffuser and front wing that made such a difference to Lewis Hamilton’s car last time out, and Kimi Raikkonen has the new front wing that only Ferrari team-mate Felipe Massa had in Germany. And Toro Rosso have the new parts that have put Red Bull in a league of their own since Silverstone - a new diffuser, front wing, nose and top bodywork."0847: So it’s a big F1 welcome toJaime Alguersuari](http://www.paklinks.com/sport2/low/motorsport/formula_one/drivers_and_teams/8159422.stm)this weekend, the 19-year-old with an obscene amount of vowels in his name. He steps into Sebastien Bourdais’s seat at Toro Rosso. I say welcome, but there are already murmurings of discontent from the other drivers. The Spaniard has done two straight-line tests in an F1 car - meaning not only will today be the first time he drives an F1 circuit, it will be the first time he goes round a corner in an F1 car. Lewis Hamilton says he “wouldn’t have been ready” while Jenson Button added: "At his age it could absolutely destroy his career. It could end his dream of being competitive in Formula 1."BBC Sport’s Sarah Holt on Twitter:](http://twitter.com/sarahholtf1)“Just arriving at the track courtesy of an access road for big wigs and media. It’s called Bernie Avenue.”
0839: The all-important weather update from the Hungaroring is that it’s warm, about 33C, but will be getting cooler through the weekend. When I say cooler, I mean 26C on Sunday, which sounds positively roasting to me. No sign of any rain.0830: Good morning. Such is my obsession with F1 these days that last night I dreamt BBC Sport’s Sarah Holt gave me an Adrian Sutil cake. It’s got me thinking: there’s a gap in the cake market there, isn’t thereThis article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.