
More of Less
Jay Lamm on Mazda's revamped Miata, a new(er) retro sportscar.
Darwin or Lose
Most enthusiasts, myself included, have a knee-jerk love for ground-up redesigns. And this notion isn't without merit: The creators of the first MX5-internally called LOOS, for Light Weight Sports-fought hard for an all-new car, and luckily Mazda's bean-counters were too busy with other - things to bother stopping them. As a result, the LWS team got to create a fresh, pure design from the ground up; they didn't have to make compromises to fit the Miata over some pre-existing car's hardpoints.
Fossil Record
Happily, the '98 Miata is everything that evolution should produce. It uses the same basic unibody as before, but with strategically strengthened geometry around the A-pillar, transmission tunnel, and front and rear bulkheads. The result is a noticeably stiffer, tighter structure that feels more than a match for the current Z3, the Miata's closest rival in America. The powerplant is basically the same 1.8-liter Four as in '97, but now it features larger and straighter ports, new cams, a higher 9.5:1 compression ratio with knock control, and a variable-length intake tract good for seven extra horses (to 140 bhp @ 6500 rpm) and five more pounds of torque (119 @ 5500), all of it delivered across a flatter and meatier powerband. The same 4-wheel independent suspension is carried over with relocated pivot points for improved toe control, less torque reaction, and a lower front roll center. And while the trunk is only 10% bigger, by moving the battery and spare tire under the floor Mazda has finally opened it up to hard-sided luggage or even- gasp!-a golf bag or two. The top is also greatly improved, featuring a standard glass rear window with defroster and a revised frame that's easier to erect one-handed.
Gene Pull
If there's a downside to all these refinements, it must be that some of the old car's raucous nature has been lost, just as it was when the original 1.6-liter Miata gave way to the stiffened 1.8 for 1994. While the interior dimensions are unchanged, a so-called Aeroboard is now standard to tame wind noise at speed (and double as a fence for the cargo shelf). Classier materials and rethought insulation make the cockpit fairly dignified, but the previous 1.8's exhaust note-itself tamer than the 1.6's-is muted even more now. You can bet Mazda disassembled a lot of Z3s in creating this car, but one of the things they shouldn't have shot for was the Bimmer's distant, flatulent engine sound. The new Miata's doesn't come off nearly as bad as that, but it ain't what it could be.
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