Gremlin certainly take their Lotus licence seriously. Apart from loads of very swish techy Lotus stuff on the Amiga intro (time to first speeding ticket, etc), they've issued all the competitors with Lotus Esprit Turbo SEs. That way however poor the human players are an, Esprit always wins!

The only way of telling the cars apart is that the competitor cars are red, with a one or two on the bumper to show who's who. If you can't find a friend to fill the second car, the lower half of the screen shows the car in the pits (I thought Lotus's reliability problems had been solved!).

In any case the tracks ahead provide plenty of challenge, with rocks in the road, slippery oil spills and water pools to slow you down. Longer races also require refuelling in the pits. The biggest challenge, though, is those crazy computer cars, 18 of them turboing about with many manically weaving across the road.

There are a total of 32 different worldwide tracks within the three skill levels: seven in easy, ten in medium, and 15 in hard. In every race, points are awarded to the first ten drivers home - these are totalled to determone the World Championship.

As long as at least one human player finishes in the top ten, both player can carry on to the next race. Players have a choice of automatic or manual gears, and two control methods - either pushing forward or holding down fire to accelerate.

This makes it instantly, compulsively addictive. However there is a negative side: the graphic variety isn't extensive and with only fuel to worry about, strategy is rather limited. Tunnels, weather conditions, worn tyres or at least different colour computer-controlled cars would have helped it dramatically.

Lotus works brilliantly as a two-player-game; on your own it loses quite a lot of its entertainment value. It's technically excellent but in the gameplay stakes doesn't advance the racer idea an awful lot (Pitstop II has more depth).

As to differences between the two versions, like Phil I found the C64 game toughest, but both are technically stunning with all twenty cars appearing on screen on the Amiga (twice over, in fact due to the splitscreen), and the C64 managing a respectable five or six cars per screen.

Such big, fast-moving cars mean the C64's collision detection isn't always immaculate, but the sheer spectacle more than compensates. Great fun on both machines.

Both versions are technically impressive, with the more speed and cars than is believable. In fact the C64 version is a little bit too fast - the cars are so big that you don't have much time to react as they zoom in off the horizon.

For both versions the computer cars make things very tricky, homing in on you and requiring you to swerve quickly one way then the other to overtake. Later levels are even more tense with rocks and oil pools littering the road plus the need to stop and refuel.

This is where the real excitement lies with each driver pushing the other to the limit, daring each other to take extra risks - especially with quick refuelling! At the same time, however, ensuring at least one of you gets into the top ten adds an intriguing twist to the otherwise highly competitive races.