The inventory is 99%+ correct, only missing decals and decorations; I substituted both minifig's torsos and used a similar "lifebuoy" print.

=MISSING DECALS=
1. https://rebrickable.com/parts/3626bpr0008/minifig-head-eyebrows-and-headset/
2. https://rebrickable.com/parts/973c27h03pr0079/torso-jacket-res-q-logo/
3. https://rebrickable.com/parts/973c01h01pr0018/torso-shirt-tied-at-bottom-with-blue-flowers/
4. https://rebrickable.com/parts/3297pr0014/slope-33-3-x-4-with-res-q-on-yellow-triangle-print/
5. https://www.bricklink.com/v2/catalog/catalogitem.page?P=2962stk01&idColor=0 ("Lifebuoy" sticker)

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This set no. 2962 'Res-Q Lifeguard,' or 'Life Guard Res-Q,' came out in 1998 as part of the "Res-Q" theme.

It was a promotional release, available exclusively at Tchibo coffeeshops in Germany and via the Shop-At-Home catalog in North America (https://images.brickset.com/library/view/?f=catalogues/c99sahSummer&p=24).

The "Res-Q" only lasted for two seasons, with about ten sets released in 1998. The futuristic, almost aggressive style and striking color scheme (black, yellow, and transparent dark blue) represented a short-lived LEGO design trend that year, also evident in the "Extreme Team" line-up.

Another cornerstone source of inspiration, whether consciously or coincidentally, was a '92 set no. 1896 'Trauma Team' from the "RSQ911" theme. In particular, the 'Res-Q Lifeguard' truck is almost like a downsized replica of the smaller 'Trauma Team' cruiser: identical sloped windscreen, wedge-shaped cabin, short wheelbase.

The "Res-Q" truck has a spacious rear trunk accessible through a rear hatch; surprisingly, there is no equipment to load the car (besides a white hat). The driver sports an exclusive torso with the "Res-Q" logo, as well as a headpiece with eyebrows and headset (created for the '95 theme "Launch Command"); both parts are missing on Mecabricks.

The female lifeguard has a quirky torso underneath her yellow lifevest—a pink tied-up shirt with floral print from a recently retired "Paradisa" theme. Pretty unexpected choice! This minifig has three accessories: a megaphone, binoculars, and a walkie-talkie.

Besides that, the 'Res-Q Lifeguard' included just a tiny lifeguard post and a lifebuoy on a stand.

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=MORE 'RES-Q'=

6479: Res-Q > Emergency Response Center (1998)
https://www.mecabricks.com/en/models/07vNg7y3aAm

6473: Res-Q Cruiser ('98)
https://www.mecabricks.com/en/models/1w2rR4MV28W

====

1896: RSQ911 > Trauma Team (1992)
The iconic model that inspired the "Res-Q" style
https://www.mecabricks.com/en/models/6mLvzYqJjAw
by @Batka

=EXTREME TEAM=
Another '98 theme that had similar aggressive, rugged vehicles:

6582: Daredevil Flight Squad (1998)
https://www.mecabricks.com/en/models/0DvY8rO8j9e

6568: Drag Race Rally ('98)
https://www.mecabricks.com/en/models/Jk2ExPmZa9A



6572: Wind Runners ('98)
https://www.mecabricks.com/en/models/KZvmN5eGaG6

2963: Extreme Team Racer ('98)
https://www.mecabricks.com/en/models/07vNgM10aAm

=MISC 'RESCUE' SETS=

6487: Town > Outback > Mountain Rescue (1997)
https://www.mecabricks.com/en/models/0DvY8z1Zj9e

6545: Town > Police > Search N' Rescue ('96)
https://www.mecabricks.com/en/models/LyjWYdbpaJr

6342: Town > Beach Rescue Chopper (1993)
https://www.mecabricks.com/en/models/VzvMyZK6vJp

1656: Town > Fire > Evacuation Team ('91)
https://www.mecabricks.com/en/models/KZvmb6Y3aG6